diff --git a/src/Bundle/ChillActivityBundle/Export/Aggregator/ACPAggregators/DateAggregator.php b/src/Bundle/ChillActivityBundle/Export/Aggregator/ACPAggregators/DateAggregator.php
index 6dda268e2..1c2f02d3b 100644
--- a/src/Bundle/ChillActivityBundle/Export/Aggregator/ACPAggregators/DateAggregator.php
+++ b/src/Bundle/ChillActivityBundle/Export/Aggregator/ACPAggregators/DateAggregator.php
@@ -34,31 +34,26 @@ class DateAggregator implements AggregatorInterface
     public function getLabels($key, array $values, $data)
     {
         return function ($value) use ($data): string {
+            if ($value === '_header') {
+                return 'by '. $data['frequency'];
+            }
             switch ($data['frequency']) {
                 case 'month':
-                    if ($value === '_header') {
-                        return 'by month';
-                    }
                     $month = \DateTime::createFromFormat('!m', $value);
-                    return
-                        sprintf("%02d", $value) .'/'.
-                        $month->format('F')  // TODO translation ?!?
-                    ;
+                    return sprintf(
+                        "%02d (%s)",
+                        $value,
+                        $month->format('M')
+                    );
 
                 case 'week':
-                    if ($value === '_header') {
-                        return 'by week';
-                    }
-                    return $this->translator->trans('for week') .' '. $value ;
+                    //return $this->translator->trans('for week') .' '. $value ;
 
                 case 'year':
-                    if ($value === '_header') {
-                        return 'by year';
-                    }
-                    return $this->translator->trans('in year') .' '. $value ;
+                    //return $this->translator->trans('in year') .' '. $value ;
 
                 default:
-                    throw new RuntimeException(sprintf('The value %s is not valid', $value));
+                    return $value;
             }
         };
     }
@@ -91,34 +86,24 @@ class DateAggregator implements AggregatorInterface
 
     public function alterQuery(QueryBuilder $qb, $data)
     {
+        $order = null;
+
         switch ($data['frequency']) {
             case 'month':
-                $qb
-                    //->addSelect("TO_CHAR(activity.date,'Mon') AS MON")
-                    ->addSelect('EXTRACT(month FROM activity.date) AS date_aggregator')
-                    //->orderBy('date_aggregator')
-                ;
-                break;
+                $fmt = 'MM'; break;
 
             case 'week':
-                $qb
-                    ->addSelect("TO_CHAR(activity.date, 'IW') AS date_aggregator")
-                    //->orderBy('date_aggregator')
-                ;
-                break;
+                $fmt = 'IW'; break;
 
             case 'year':
-                $qb
-                    //->addSelect("TO_CHAR(activity.date, 'YYYY') AS date_aggregator")
-                    ->addSelect('EXTRACT(year FROM activity.date) AS date_aggregator')
-                    //->orderBy('date_aggregator', 'ASC')
-                ;
-                break;
+                $fmt = 'YYYY'; $order = 'DESC'; break;
 
             default:
                 throw new RuntimeException(sprintf("The frequency data '%s' is invalid.", $data['frequency']));
         }
 
+        $qb->addSelect(sprintf("TO_CHAR(activity.date, '%s') AS date_aggregator", $fmt));
+
         $groupBy = $qb->getDQLPart('groupBy');
 
         if (!empty($groupBy)) {
@@ -126,6 +111,14 @@ class DateAggregator implements AggregatorInterface
         } else {
             $qb->groupBy('date_aggregator');
         }
+
+        $orderBy = $qb->getDQLPart('orderBy');
+
+        if (!empty($orderBy)) {
+            $qb->addOrderBy('date_aggregator', $order);
+        } else {
+            $qb->orderBy('date_aggregator', $order);
+        }
     }
 
     public function applyOn(): string
diff --git a/src/Bundle/ChillMainBundle/Doctrine/DQL/Extract.php b/src/Bundle/ChillMainBundle/Doctrine/DQL/Extract.php
index 44d20724b..72ca2b461 100644
--- a/src/Bundle/ChillMainBundle/Doctrine/DQL/Extract.php
+++ b/src/Bundle/ChillMainBundle/Doctrine/DQL/Extract.php
@@ -2,7 +2,9 @@
 
 namespace Chill\MainBundle\Doctrine\DQL;
 
+use Doctrine\ORM\Query\AST\Functions\DateDiffFunction;
 use Doctrine\ORM\Query\AST\Functions\FunctionNode;
+use Doctrine\ORM\Query\AST\Node;
 use Doctrine\ORM\Query\AST\PathExpression;
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
@@ -12,13 +14,17 @@ use Doctrine\ORM\Query\SqlWalker;
  * Extract postgresql function
  * https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT
  *
- * Usage : EXTRACT(field FROM value)
+ * Usage : EXTRACT(field FROM timestamp)
+ * TODO allow interval usage -> EXTRACT(field FROM interval)
  */
 class Extract extends FunctionNode
 {
     private string $field;
 
-    private PathExpression $value;
+    private $value;
+    //private PathExpression $value;
+    //private FunctionNode $value;
+    //private DateDiffFunction $value;
 
     public function getSql(SqlWalker $sqlWalker)
     {
@@ -39,7 +45,8 @@ class Extract extends FunctionNode
 
         $parser->match(Lexer::T_FROM);
 
-        $this->value = $parser->ScalarExpression();
+        //$this->value = $parser->ScalarExpression();
+        $this->value = $parser->ArithmeticPrimary();
 
         $parser->match(Lexer::T_CLOSE_PARENTHESIS);
     }
diff --git a/src/Bundle/ChillMainBundle/Entity/GeographicalUnit.php b/src/Bundle/ChillMainBundle/Entity/GeographicalUnit.php
new file mode 100644
index 000000000..9e119e30d
--- /dev/null
+++ b/src/Bundle/ChillMainBundle/Entity/GeographicalUnit.php
@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Chill\MainBundle\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Table(name="chill_main_geographical_unit")
+ * @ORM\Entity
+ */
+class GeographicalUnit
+{
+    /**
+     * @ORM\Column(type="text", nullable=true)
+     */
+    private $geom;
+
+    /**
+     * @ORM\Id
+     * @ORM\GeneratedValue
+     * @ORM\Column(type="integer")
+     */
+    private ?int $id = null;
+
+    /**
+     * @ORM\Column(type="string", length=255, nullable=true)
+     */
+    private $layerName;
+
+    /**
+     * @ORM\Column(type="string", length=255, nullable=true)
+     */
+    private $unitName;
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getLayerName(): ?string
+    {
+        return $this->layerName;
+    }
+
+    public function getUnitName(): ?string
+    {
+        return $this->unitName;
+    }
+
+    public function setLayerName(?string $layerName): self
+    {
+        $this->layerName = $layerName;
+
+        return $this;
+    }
+
+    public function setUnitName(?string $unitName): self
+    {
+        $this->unitName = $unitName;
+
+        return $this;
+    }
+}
diff --git a/src/Bundle/ChillMainBundle/migrations/Version20220829132409.php b/src/Bundle/ChillMainBundle/migrations/Version20220829132409.php
new file mode 100644
index 000000000..0bb09ef74
--- /dev/null
+++ b/src/Bundle/ChillMainBundle/migrations/Version20220829132409.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chill\Migrations\Main;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Add new entity GeographicalUnit
+ */
+final class Version20220829132409 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add new entity GeographicalUnit';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('CREATE SEQUENCE chill_main_geographical_unit_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE TABLE chill_main_geographical_unit (id INT NOT NULL, geom TEXT DEFAULT NULL, layerName VARCHAR(255) DEFAULT NULL, unitName VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id))');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('DROP SEQUENCE chill_main_geographical_unit_id_seq CASCADE');
+        $this->addSql('DROP TABLE chill_main_geographical_unit');
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/DurationAggregator.php b/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/DurationAggregator.php
new file mode 100644
index 000000000..2a0215e82
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/DurationAggregator.php
@@ -0,0 +1,148 @@
+<?php
+
+namespace Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators;
+
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Chill\PersonBundle\Export\Declarations;
+use Doctrine\ORM\EntityRepository;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+/**
+ * Les regroupements seront un nombre de mois, arrondi à l'unité la plus proche (donc
+ * - au dela de 15 jours => 1 mois,
+ * - jusqu'à 45 jours => 1 mois,
+ *    15   |    45   |    75
+ *  --+----o----+----o----+----
+ *    |   30    |   60    |
+ * etc.)
+ */
+class DurationAggregator implements AggregatorInterface
+{
+    private TranslatorInterface $translator;
+    
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getLabels($key, array $values, $data)
+    {
+        return function ($value) use ($data): string {
+
+            if ($value === '_header') {
+                return $this->translator->trans('Rounded month duration');
+            }
+
+            if ($value === null) {
+                return $this->translator->trans('current duration'); // when closingDate is null
+            }
+
+            if ($value === 0) {
+                return $this->translator->trans("duration 0 month");
+            }
+
+            return ''. $value . $this->translator->trans(' months');
+        };
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getQueryKeys($data): array
+    {
+        return ['duration_aggregator'];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // no form
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getTitle(): string
+    {
+        return 'Group by duration';
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function addRole()
+    {
+        return null;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        $qb
+            // OUI
+            ->addSelect('
+                (acp.closingDate - acp.openingDate +15) *12/365 
+                AS duration_aggregator'
+            )
+            //->addSelect('DATE_DIFF(acp.closingDate, acp.openingDate) AS duration_aggregator')
+            //->addSelect('EXTRACT(month FROM acp.openingDate) AS duration_aggregator')
+            //->addSelect("DATE_SUB(acp.openingDate, 6, 'day') AS duration_aggregator")
+
+            // TODO adapter la fonction extract pour l'utiliser avec des intervals: extract(month from interval)
+            // et ajouter une fonction custom qui calcule les intervals, comme doctrineum/date-interval
+            // https://packagist.org/packages/doctrineum/date-interval#3.1.0
+            // (composer fait un conflit de dépendance)
+
+            //->addSelect("
+            //    EXTRACT(
+            //        month FROM
+            //        DATE_INTERVAL(acp.closingDate, acp.openingDate)
+            //    )
+            //    AS duration_aggregator")
+
+            // NON
+            //->addSelect("BETWEEN acp.openingDate AND acp.closingDate AS duration_aggregator")
+            //->addSelect("EXTRACT(month FROM DATE_SUB(acp.openingDate, 6, 'day')) AS duration_aggregator")
+            //->addSelect('EXTRACT(month FROM DATE_DIFF(acp.closingDate, acp.openingDate)) AS duration_aggregator')
+            /*
+            ->addSelect('
+                ( CASE
+                    WHEN EXTRACT(day FROM DATE_DIFF(acp.closingDate, acp.openingDate)) > 15
+                        THEN EXTRACT(month FROM DATE_DIFF(acp.closingDate, acp.openingDate)) +1
+                        ELSE EXTRACT(month FROM DATE_DIFF(acp.closingDate, acp.openingDate))
+                END ) AS duration_aggregator
+            ')
+            */
+        ;
+
+        $groupBy = $qb->getDQLPart('groupBy');
+
+        if (!empty($groupBy)) {
+            $qb->addGroupBy('duration_aggregator');
+        } else {
+            $qb->groupBy('duration_aggregator');
+        }
+
+        $qb->orderBy('duration_aggregator');
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function applyOn(): string
+    {
+        return Declarations::ACP_TYPE;
+    }
+}
\ No newline at end of file
diff --git a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/GeographicalUnitStatFilter.php b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/GeographicalUnitStatFilter.php
index 8a18eb2fe..5445e20a4 100644
--- a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/GeographicalUnitStatFilter.php
+++ b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/GeographicalUnitStatFilter.php
@@ -2,13 +2,14 @@
 
 namespace Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters;
 
+use Chill\MainBundle\Entity\GeographicalUnit;
 use Chill\MainBundle\Export\FilterInterface;
 use Chill\MainBundle\Form\Type\ChillDateType;
 use Chill\PersonBundle\Export\Declarations;
 use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\Query\Expr\Andx;
 use Doctrine\ORM\QueryBuilder;
-use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\FormBuilderInterface;
 
 /**
@@ -23,12 +24,6 @@ use Symfony\Component\Form\FormBuilderInterface;
  */
 class GeographicalUnitStatFilter implements FilterInterface
 {
-
-    private const LOCTYPE = [
-        'center' => 'center',
-        // TODO not yet implemented: https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/626
-    ];
-
     /**
      * @inheritDoc
      */
@@ -38,9 +33,12 @@ class GeographicalUnitStatFilter implements FilterInterface
             ->add('date', ChillDateType::class, [
                 'data' => new \DateTime(),
             ])
-            ->add('accepted_loctype', ChoiceType::class, [
-                'choices' => self::LOCTYPE,
-                'multiple' => false,
+            ->add('accepted_loctype', EntityType::class, [
+                'class' => GeographicalUnit::class,
+                'choice_label' => function (GeographicalUnit $u) {
+                    return $u->getUnitName();
+                },
+                'multiple' => true,
                 'expanded' => true,
             ])
         ;
diff --git a/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml b/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
index 155ad11df..2b578b4f9 100644
--- a/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
+++ b/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
@@ -241,3 +241,10 @@ services:
         tags:
             - { name: chill.export_aggregator, alias: accompanyingcourse_referrer_aggregator }
 
+    chill.person.export.aggregator_duration:
+        class: Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\DurationAggregator
+        autowire: true
+        autoconfigure: true
+        tags:
+            - { name: chill.export_aggregator, alias: accompanyingcourse_duration_aggregator }
+
diff --git a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
index 9bb2c7e3f..e105dd45f 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
@@ -569,6 +569,11 @@ Group by composition: Grouper les ménages par composition familiale
 Group by number of children: Grouper les ménages par nombre d'enfants
 
 ## persons aggregators
+Group by duration: Grouper par durée du parcours
+Rounded month duration: Durée en mois (arrondie)
+current duration: en cours
+duration 0 month: 0 mois (<15 jours)
+' months': ' mois'
 Group people by nationality: Grouper les personnes par nationalités
 Group by level: Grouper par niveau
 Group by continents: Grouper par continent