0.76  250.
 0.56  500.
 0.56  750.
 0.49 1000.
 0.47 1250.
 0.45 1500.
 0.46 1750.
 0.44 2000.
 0.44 2250.
 0.40 2500.
 0.40 2750.
 0.39 3000.
 0.38 3250.
 0.39 3500.
 0.39 3600.
 0.40 3700.
 0.40 3800.
 0.38 3900.
 0.40 4000.
 0.40 4100.
 0.44 4200.
 0.51 4300.