id: 70 yr ( 6, (1, 1, 4, 0)) (( 2.8, 2.9 ), ( 4.0, 1.5 ))
 +1                   |          +3 
                    |           
+----+----+----+----+----+---2013+-
                    |           
                    |           
                    |           
                    |           
+    +    +    +    +    +    + 
                    |           
                    |           
                    |           
                 2014  |  2018        
+    +    +    +    +    +    + 
                    |           
              2015    |           
                    |           
                    |           
+    +    +    +    +    +    + 
                    |           
                    |           
        2016           |           
                    |           
+    +    +    +    +    +    + 
                    |           
                    |           
                    |           
                    |           
+    +    +    +    +    +    + 
                    |           
                    |           
  2017                 |           
                    |           
 -9    +    +    +    +    +    +-6