id: 84 media ( 3, (0, 0, 0, 3)) (( 1.3, 1.2 ), ( 10.9, 5.1 ))
 +13              +0 
+    +    +    +
      2013        |
               |
               |
               |
+    +    +    +
    2012          |
               |
               |
               |
+ 2011  +    +    +
               |
               |
               |
               |
+    +    +    +
               |
               |
               |
               |
+    +    +    +
               |
               |
               |
               |
+    +    +    +
               |
               |
               |
               |
 0----+----+-----7