id: 307 yr ( 10, (4, 0, 6, 0)) (( 10.5, 10.8 ), ( 5.6, 6.5 ))
 +6                         |      +5 
                          |       
                          |   20162020  
 +    +    +    +    +    +   2018+  
                          |       
                          | 2017     
                          |       
                          |       
-+----+----+----+----+----+----+--
                       2015  |       
                        2019 |       
                          |       
                          |       
 +    +    +    +    +    +    +  
                         |       
                          |       
                          |       
                          |       
 +    +    +    +    +    +    +  
                          |       
             2011            |       
                          |       
                          |       
 +    +    +    +    +    +    +  
                          |       
                          |       
                          |       
      2013                   |       
 +    +    +    +    +    +    +  
    2012                     |       
                          |       
  2014                       |       
                          |       
 -22+    +    +    +    +    +    + -23