id: 223 yr ( 7, (6, 0, 1, 0)) (( 7.0, 7.0 ), ( 4.7, 7.0 ))
 +21  |                            +23 
   |                             
   +    +    +    +    +    + 2011  
   |                             
   |                             
   |                             
   |                             
   +    +    +    +    +    +    
   |                             
   |                             
   |                             
   |                             
   +    +    +    +    +    +    
   |                             
   |                             
   |                             
   |                             
   +    +    +    +    +    +    
   |                             
   |                             
   |                             
   |       2016                     
   +    + 2017 14  +    +    +    +    
   |     2012                       
   |                             
   |                             
   |                             
---+---2015+----+----+----+----+----
   |                             
   |                             
   |                             
   |                             
  2013+    +    +    +    +    +    
   |                             
 -4  |                            -2