truncmonth.diff

Sideshow:pontoon mathjazz$ git diff pontoon/
diff --git a/pontoon/contributors/utils.py b/pontoon/contributors/utils.py
index 840efcb42..6600252ae 100644
--- a/pontoon/contributors/utils.py
+++ b/pontoon/contributors/utils.py
@@ -381,14 +381,16 @@ def get_project_locale_contribution_counts(contributions_qs):

     for item in (
         contributions_qs.annotate(
+            month=TruncMonth("created_at"),
             project_name=F("translation__entity__resource__project__name"),
             project_slug=F("translation__entity__resource__project__slug"),
             locale_name=F("translation__locale__name"),
             locale_code=F("translation__locale__code"),
         )
-        .values("project_name", "project_slug", "locale_name", "locale_code")
+        .values("month", "project_name", "project_slug", "locale_name", "locale_code")
         .annotate(count=Count("id"))
         .values(
+            "month",
             "project_name",
             "project_slug",
             "locale_name",
@@ -396,6 +398,7 @@ def get_project_locale_contribution_counts(contributions_qs):
             "action_type",
             "count",
         )
+        .order_by("month")
     ):
         key = (item["project_slug"], item["locale_code"])
         count = item["count"]