diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsAbsencesCard.vue b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsAbsencesCard.vue
index e2dd2205e6975e7e2d02c6ec5e96eea38ddb6696..fb8d90a6a8fe80c368f286f9f78bf9e07f1d3e0e 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsAbsencesCard.vue
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsAbsencesCard.vue
@@ -4,6 +4,7 @@
     <v-card-text class="d-flex flex-column" style="gap: 0.5em">
       <absence-reason-chip
         v-for="absenceReason in absenceReasons"
+        :key="absenceReason.id"
         :absenceReason="absenceReason.absenceReason"
         :count="absenceReason.count"
       />
diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsExtraMarksCard.vue b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsExtraMarksCard.vue
index e7ae371559623adb49fb96ee2280d0f303247870..8d778222a09ccbb59bbf148b5495c396a16b601a 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsExtraMarksCard.vue
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsExtraMarksCard.vue
@@ -4,6 +4,7 @@
     <v-card-text class="d-flex flex-column" style="gap: 0.5em">
       <counter-chip
         v-for="extraMark in extraMarks"
+        :key="extraMark.id"
         :value="extraMark.extraMark.id"
         :color="extraMark.extraMark.colourBg"
         :text-color="extraMark.extraMark.colourFg"
diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForGroupTab.vue b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForGroupTab.vue
index 0680a662d815a0b0e87a7c717f6e4bfad1662382..e4be1ec19f62dd3d9537e1ab4b0cc532b86c5696 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForGroupTab.vue
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForGroupTab.vue
@@ -10,17 +10,40 @@
     :show-select="false"
     @items="items = $event"
   >
-    <template #header.person="header">
-      Hello world
-      {{ header }}
-    </template>
 
-    <template v-for="(extraMark, index) in extraMarks" #[`extraMarks.${index}.count`]="{ item }">
-      <extra-mark-chip :extra-mark="extraMark" only-show-count dense :count="item.extraMarks.find(m => extraMark.id === m.extraMark.id).count" />
+    <!--    <template #header.person="header">-->
+    <!--      Hello world-->
+    <!--      {{ header }}-->
+    <!--    </template>-->
+
+    <template
+      v-for="(extraMark, index) in extraMarks"
+      #[`extraMarks.${index}.count`]="{ item }"
+    >
+      <extra-mark-chip
+        :extra-mark="extraMark"
+        only-show-count
+        dense
+        :count="
+          item.extraMarks.find((m) => extraMark.id === m.extraMark.id).count
+        "
+      />
     </template>
 
-    <template v-for="(absenceReason, index) in absenceReasons" #[`absenceReasons.${index}.count`]="{ item }">
-      <absence-reason-chip :absence-reason="absenceReason" onlyShowCount dense :count="item.absenceReasons.find(m => absenceReason.id === m.absenceReason.id).count" />
+    <template
+      v-for="(absenceReason, index) in absenceReasons"
+      #[`absenceReasons.${index}.count`]="{ item }"
+    >
+      <absence-reason-chip
+        :absence-reason="absenceReason"
+        only-show-count
+        dense
+        :count="
+          item.absenceReasons.find(
+            (m) => absenceReason.id === m.absenceReason.id,
+          ).count
+        "
+      />
     </template>
 
     <template #person="{ item }">
@@ -42,7 +65,10 @@
     </template>
 
     <template #actions="{ item }">
-      <secondary-action-button i18n-key="alsijil.personal_notes.statistics.person_view_details" icon-text="mdi-open-in-new" />
+      <secondary-action-button
+        i18n-key="alsijil.personal_notes.statistics.person_view_details"
+        icon-text="mdi-open-in-new"
+      />
     </template>
   </c-r-u-d-list>
 </template>
@@ -86,7 +112,7 @@ export default {
           text: this.$t("person.name"),
           value: "person",
         },
-          ...this.absenceReasons.map((reason, index) => {
+        ...this.absenceReasons.map((reason, index) => {
           return {
             text: reason.name,
             value: `absenceReasons.${index}.count`,
@@ -107,19 +133,21 @@ export default {
         },
         {
           value: "actions",
-        }
+        },
       ];
     },
     absenceReasonsFirstHeader() {
-      return this.absenceReasons.length > 0 ? this.absenceReasons[0].shortName + ".header" : null;
+      return this.absenceReasons.length > 0
+        ? this.absenceReasons[0].shortName + ".header"
+        : null;
     },
     extraMarksFirstHeader() {
-      return this.extraMarks.length > 0 ? this.extraMarks[0].shortName + ".header" : null;
+      return this.extraMarks.length > 0
+        ? this.extraMarks[0].shortName + ".header"
+        : null;
     },
     gqlQueryArgs() {
-      const term = this.schoolTerm
-            ? { term: this.schoolTerm.id }
-            : {};
+      const term = this.schoolTerm ? { term: this.schoolTerm.id } : {};
       return {
         group: this.group.id,
         ...term,
diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForPersonPage.vue b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForPersonPage.vue
index b4fe3e012d2a2235312b802fdab9aca895805ccd..a15eec941683635098b9725753c626f89fb2ac23 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForPersonPage.vue
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForPersonPage.vue
@@ -41,10 +41,12 @@
                 <!-- chips: absences & extraMarks -->
                 <absence-reason-chip
                   v-for="absence in items.absences"
+                  :key="absence.id"
                   :absenceReason="absence"
                 />
                 <v-chip
                   v-for="extraMark in item.extraMarks"
+                  :key="extraMark.id"
                   :value="extraMark.id"
                   :color="extraMark.colourBg"
                   :text-color="extraMark.colourFg"
diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/statistics.graphql b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/statistics.graphql
index 476209b10262252de4b52664bcf6411aff505ef7..d1f45309f7e9740b8965628fc45acc6bc8fa366e 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/statistics/statistics.graphql
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/statistics/statistics.graphql
@@ -76,10 +76,10 @@ query documentationsByPerson($person: ID!, $term: ID) {
 
 query statisticsByGroup($group: ID!, $term: ID) {
   items: statisticsByGroup(group: $group, term: $term) {
-#    persons {
-#      id
-#      fullName
+    #    persons {
+    #      id
+    #      fullName
     ...statistics
-#    }
+    #    }
   }
 }
diff --git a/aleksis/apps/alsijil/schema/__init__.py b/aleksis/apps/alsijil/schema/__init__.py
index d17fe665c35fd074d5c1f369f1942e5e8604408d..b8fe2fcc362be7c46c965e4ac783dca3317d7efe 100644
--- a/aleksis/apps/alsijil/schema/__init__.py
+++ b/aleksis/apps/alsijil/schema/__init__.py
@@ -42,7 +42,6 @@ from .personal_note import (
     PersonalNoteBatchDeleteMutation,
     PersonalNoteBatchPatchMutation,
 )
-from .participation_status import ParticipationStatusBatchPatchMutation
 from .statistics import (
     DocumentationByPersonType,
     StatisticsByPersonType,
@@ -268,7 +267,9 @@ class Query(graphene.ObjectType):
 
     @staticmethod
     def resolve_statistics_by_group(root, info, group, term=None):
-        school_term = SchoolTerm.objects.get(id=term) if term is not None else SchoolTerm.get_current()
+        school_term = (
+            SchoolTerm.objects.get(id=term) if term is not None else SchoolTerm.get_current()
+        )
 
         members = Group.objects.get(id=group).members.all()
         return annotate_person_statistics_for_school_term(members, school_term)