id: 273 yr ( 8, (3, 0, 5, 0)) (( 12.0, 11.8 ), ( 1.6, 5.5 ))
 +14                      |          +11 
                       |           
                       |        2017  
                       |       2014   
   +    +    +    +    +    +    + 
                       |           
                       |           
                       |           
                       |           
   +    +    +    +    +    +    + 
                       |2015          
                       |           
                       |           
                       |           
---+----+----+----+-2016--+----+----+-
                  2011   |           
                       |           
                       |           
                       |           
   +    +    + 2018  +    +    +    + 
                       |           
                       |           
                       |           
                       |           
   +    +    +    +    +    +    + 
                       |           
                       |           
                       |           
                       |           
   +2012   +    +    +    +    +    + 
                       |           
  2013                    |           
                       |           
 -21                      |          -24