id: 89 yr ( 2, (2, 0, 0, 0)) (( 2.0, 1.9 ), ( 2.2, 3.4 ))
 +5                         +6 
+    +    +    +    +    + 
|                       2012  
|                          
|                          
|                          
+    +    +    +    +    + 
|                          
|                          
|                          
|                          
+    +    +    +   +    + 
|                          
|                          
|                          
|                          
+    +    +    +    +    + 
|                          
|                          
|                          
|                          
+----+----2011----+----+----+-
|                          
 0