16
  10.0    100.0
  100.0	  190.0
  190.0	  270.0
  270.0	  350.0
  350.0	  450.0
  450.0	  590.0
  590.0   670.0
  670.0   880.0
  880.0   970.0
  970.0   1220.0
  1220.0  1430.0
  1430.0  1800.0
  1800.0  2270.0
  2270.0  3190.0
  3190.0  3380.0
  3380.0  4000.0