id: 172 media ( 4, (4, 0, 0, 0)) (( 2.0, 1.9 ), ( 17.6, 14.5 ))
 +21                          +18 
+    +    +    +    +    +  
|                        2010  
|                           
|                           
|                           
+    +    +    +    +2011   +  
|                          
|                           
|                 2012         
|                2013          
+    +    +    +    +    +  
|                           
|                           
|                           
|                           
+    +    +    +    +    +  
|                           
|                           
|                           
|                           
+    +    +    +    +    +  
|                           
|                           
|                           
|                           
+    +    +    +    +    +  
|                           
|                           
|                           
|                           
 0----+----+----+----+----+-