id: 49 media ( 2, (2, 0, 0, 0)) (( 2.1, 2.0 ), ( 20.5, 8.8 ))
 +23               +11 
+    +    +    + 
|             2010  
|                
|                
|               
+    +    +    + 
|                
|        2011       
|                
|                
+    +    +    + 
|                
|                
|                
|                
+    +    +    + 
|                
|                
|                
|                
+    +    +    + 
|                
|                
|                
|                
+    +    +    + 
|                
|                
|                
|                
 0----+----+----+