1.02  250.
 0.88  500.
 0.78  750.
 0.72 1000.
 0.66 1250.
 0.62 1500.
 0.59 1750.
 0.56 2000.
 0.54 2250.
 0.52 2500.
 0.50 2750.
 0.51 3000.
 0.56 3100.
 0.54 3200.
 0.58 3300.
 0.58 3400.
 0.59 3500.
 0.58 3600.
 0.63 3700.
 0.76 3800.
 0.96 3870.