diff --git a/wally/statistic.py b/wally/statistic.py
index 8180619..74ce572 100644
--- a/wally/statistic.py
+++ b/wally/statistic.py
@@ -144,6 +144,7 @@
         self.confidence = None
         self.min = None
         self.max = None
+        self.raw = None
 
     def rounded_average_conf(self):
         return round_deviation((self.average, self.confidence))
@@ -184,4 +185,5 @@
     else:
         res.confidence = res.deviation
 
+    res.raw = data[:]
     return res