0.84  250.
 0.77  500.
 0.80  600.
 0.76  700.
 0.73  800.
 0.66  900.
 0.64 1000.
 0.62 1100.
 0.58 1200.
 0.56 1300.
 0.52 1400.
 0.48 1500.
 0.45 1600.
 0.43 1650.
 0.40 1700.
 0.38 1750.
 0.38 1800.
 0.37 1820.