id: 96 media ( 2, (2, 0, 0, 0)) (( 0.0, 0.2 ), ( 0.7, 0.5 ))
 +1 +    +    +    +    +1 
  |                    
  2011                 2012  
  |                    
  |                    
  +    +    +    +    +
  |                    
  |                    
  |                    
  |                   
  +    +    +    +    +
  |                    
  |                    
  |                    
  |                    
  +    +    +    +    +
  |                    
  |                    
  |                    
  |                    
 0-+----+----+----+----