id: 25 yr ( 3, (2, 1, 0, 0)) (( 6.0, 4.9 ), ( 1.9, 13.3 ))
 +3                             +17 
|                              
+    +    +    +    +    +  2009 +
|                              
|                           2010  
|                              
|                              
+----+----+----+----+----+----+
|                              
|                              
|                             
|                              
+    +    +    +    +    +    +
|                              
|                              
|                              
|                              
+    +    +    +    +    +    +
|                              
|                              
|                              
|                              
+    +    +    +    +    +    +
|                              
|         2011                    
|                              
 -11