23
  10.0    100.0
  100.0   220.0
  220.0   420.0
  420.0   610.0
  610.0   665.0
  665.0   800.0
  800.0   875.0
  875.0   950.0
  950.0   1080.0
  1080.0  1220.0
  1220.0  1430.0
  1430.0  1650.0
  1650.0  1850.0
  1850.0  2040.0
  2040.0  2250.0
  2250.0  2450.0
  2450.0  2700.0
  2700.0  2950.0
  2950.0  3190.0
  3190.0  3400.0
  3400.0  3600.0
  3600.0  3800.0
  3800.0  4000.0