diff --git a/app/controllers/instructeurs/procedures_controller.rb b/app/controllers/instructeurs/procedures_controller.rb
index 5f2304c55..8e431ca19 100644
--- a/app/controllers/instructeurs/procedures_controller.rb
+++ b/app/controllers/instructeurs/procedures_controller.rb
@@ -207,20 +207,9 @@ module Instructeurs
 
     def stats
       @procedure = procedure
-      @usual_traitement_time = procedure.usual_traitement_time
-
-      @dossiers_funnel = [
-        ['Démarrés', procedure.dossiers.count],
-        ['Déposés', procedure.dossiers.state_not_brouillon.count],
-        ['Instruction débutée', procedure.dossiers.state_instruction_commencee.count],
-        ['Traités', procedure.dossiers.state_termine.count]
-      ]
-
-      @termines_states = [
-        ['Acceptés', procedure.dossiers.where(state: :accepte).count],
-        ['Refusés', procedure.dossiers.where(state: :refuse).count],
-        ['Classés sans suite', procedure.dossiers.where(state: :sans_suite).count]
-      ]
+      @usual_traitement_time = stats_usual_traitement_time(@procedure)
+      @dossiers_funnel = stats_dossiers_funnel(@procedure)
+      @termines_states = stats_termines_states(@procedure)
     end
 
     private
@@ -301,5 +290,31 @@ module Instructeurs
         end
       EVAL
     end
+
+    def stats_usual_traitement_time(procedure)
+      Rails.cache.fetch("#{procedure.cache_key_with_version}/stats_usual_traitement_time", expires_in: 12.hours) do
+        procedure.usual_traitement_time
+      end
+    end
+    def stats_dossiers_funnel(procedure)
+      Rails.cache.fetch("#{procedure.cache_key_with_version}/stats_dossiers_funnel", expires_in: 12.hours) do
+        [
+          ['Démarrés', procedure.dossiers.count],
+          ['Déposés', procedure.dossiers.state_not_brouillon.count],
+          ['Instruction débutée', procedure.dossiers.state_instruction_commencee.count],
+          ['Traités', procedure.dossiers.state_termine.count]
+        ]
+      end
+    end
+
+    def stats_termines_states(procedure)
+      Rails.cache.fetch("#{procedure.cache_key_with_version}/stats_termines_states", expires_in: 12.hours) do
+        [
+          ['Acceptés', procedure.dossiers.where(state: :accepte).count],
+          ['Refusés', procedure.dossiers.where(state: :refuse).count],
+          ['Classés sans suite', procedure.dossiers.where(state: :sans_suite).count]
+        ]
+      end
+    end
   end
 end