diff --git a/app/models/poll/stats.rb b/app/models/poll/stats.rb
index 1df281434..ac45a2aae 100644
--- a/app/models/poll/stats.rb
+++ b/app/models/poll/stats.rb
@@ -16,110 +16,128 @@ class Poll
     end
 
     private
-    
+
       def total_participants
-        total_participants_web + total_participants_booth
+        stats_cache('total_participants') { total_participants_web + total_participants_booth }
       end
 
       def total_participants_web
-        total_web_valid + total_web_white + total_web_null
+        stats_cache('total_participants_web') { total_web_valid + total_web_white + total_web_null }
       end
-      
+
       def total_participants_web_percentage
-        (total_participants) == 0 ? 0 : total_participants_web * 100 / total_participants
+        stats_cache('total_participants_web_percentage') {
+          (total_participants) == 0 ? 0 : total_participants_web * 100 / total_participants
+        }
       end
 
       def total_participants_booth
-        voters.where(origin: 'booth').count
+        stats_cache('total_participants_booth') { voters.where(origin: 'booth').count }
       end
-      
+
       def total_participants_booth_percentage
-        (total_participants) == 0 ? 0 : total_participants_booth * 100 / total_participants.to_f        
+        stats_cache('total_participants_booth_percentage') {
+          (total_participants) == 0 ? 0 : total_participants_booth * 100 / total_participants.to_f
+        }
       end
-      
+
       def total_web_valid
-        voters.where(origin: 'web').count        
+        stats_cache('total_web_valid') { voters.where(origin: 'web').count }
       end
-      
+
       def valid_percentage_web
-        (total_valid_votes) == 0 ? 0 : total_web_valid * 100 / total_valid_votes.to_f
+        stats_cache('valid_percentage_web') {
+          (total_valid_votes) == 0 ? 0 : total_web_valid * 100 / total_valid_votes.to_f
+        }
       end
-      
+
       def total_web_white
-        0
+        stats_cache('total_web_white') { 0 }
       end
-      
+
       def white_percentage_web
-        0
+        stats_cache('white_percentage_web') { 0 }
       end
-      
+
       def total_web_null
-        0
+        stats_cache('total_web_null') { 0 }
       end
-      
+
       def null_percentage_web
-        0
+        stats_cache('null_percentage_web') { 0 }
       end
-      
+
       def total_booth_valid
-        recounts.sum(:total_amount)        
+        stats_cache('total_booth_valid') { recounts.sum(:total_amount) }
       end
-      
+
       def valid_percentage_booth
-        (total_valid_votes) == 0 ? 0 : total_booth_valid * 100 / total_valid_votes.to_f        
+        stats_cache('valid_percentage_booth') {
+          (total_valid_votes) == 0 ? 0 : total_booth_valid * 100 / total_valid_votes.to_f
+        }
       end
-      
-      def total_booth_white        
-        recounts.sum(:white_amount)
+
+      def total_booth_white
+        stats_cache('total_booth_white') { recounts.sum(:white_amount) }
       end
-      
+
       def white_percentage_booth
-        (total_white_votes) == 0 ? 0 : total_booth_white * 100 / total_white_votes.to_f
+        stats_cache('white_percentage_booth') {
+          (total_white_votes) == 0 ? 0 : total_booth_white * 100 / total_white_votes.to_f
+        }
       end
-      
+
       def total_booth_null
-        recounts.sum(:null_amount)        
+        stats_cache('total_booth_null') { recounts.sum(:null_amount) }
       end
-      
+
       def null_percentage_booth
-        (total_null_votes == 0) ? 0 : total_booth_null * 100 / total_null_votes.to_f
+        stats_cache('null_percentage_booth') {
+          (total_null_votes == 0) ? 0 : total_booth_null * 100 / total_null_votes.to_f
+        }
       end
-      
+
       def total_valid_votes
-        total_web_valid + total_booth_valid
+        stats_cache('total_valid_votes') { total_web_valid + total_booth_valid }
       end
-      
+
       def total_valid_percentage
-        (total_participants) == 0 ? 0 : total_valid_votes * 100 / total_participants.to_f
+        stats_cache('total_valid_percentage'){
+          (total_participants) == 0 ? 0 : total_valid_votes * 100 / total_participants.to_f
+        }
       end
-      
+
       def total_white_votes
-        total_web_white + total_booth_white
+        stats_cache('total_white_votes') { total_web_white + total_booth_white }
       end
-      
+
       def total_white_percentage
-        (total_participants) == 0 ? 0 : total_white_votes * 100 / total_participants.to_f
+        stats_cache('total_white_percentage') {
+          (total_participants) == 0 ? 0 : total_white_votes * 100 / total_participants.to_f
+        }
       end
-      
+
       def total_null_votes
-        total_web_null + total_booth_null
+        stats_cache('total_null_votes') { total_web_null + total_booth_null }
       end
-      
+
       def total_null_percentage
-        (total_participants) == 0 ? 0 : total_null_votes * 100 / total_participants.to_f
+        stats_cache('total_null_percentage') {
+          (total_participants) == 0 ? 0 : total_null_votes * 100 / total_participants.to_f
+        }
       end
 
       def voters
-        @poll.voters
+        stats_cache('voters') { @poll.voters }
       end
-      
+
       def recounts
-        @poll.recounts
+        stats_cache('recounts') { @poll.recounts }
       end
 
       def stats_cache(key, &block)
-        Rails.cache.fetch("polls_stats/#{@poll.id}/#{key}/v7", &block)
+        Rails.cache.fetch("polls_stats/#{@poll.id}/#{key}", &block)
       end
 
   end
-end
\ No newline at end of file
+end