50 0.380000
   100 0.460000
   150 0.440000
   200 0.560000
   250 0.500000
   300 0.360000
   350 0.500000
   400 0.600000
   450 0.540000
   500 0.540000
   550 0.580000
   600 0.600000
   650 0.580000
   700 0.480000
   750 0.540000
   800 0.520000
   850 0.620000
   900 0.520000
   950 0.500000
  1000 0.620000
  1050 0.540000
  1100 0.580000
  1150 0.600000
  1200 0.520000
  1250 0.620000
  1300 0.520000
  1350 0.560000
  1400 0.540000
  1450 0.640000
  1500 0.540000
  1550 0.500000
  1600 0.520000
  1650 0.540000
  1700 0.460000
  1750 0.460000
  1800 0.660000
  1850 0.620000
  1900 0.620000
  1950 0.500000
  2000 0.420000