16

  2.0    18.5 
  2.0    11.0 
  9.5    11.0 
  7.0     5.0 
  2.0     6.0 
  6.0     2.0 
 18.0     1.0 
 19.0     2.0 
 16.0     2.0 
 16.0     3.0 
 15.0     5.0 
 12.0     3.0 
 12.0     5.0 
 15.0     8.0 
 17.0     5.0 
 17.0    10.0