0.49  250.
 0.40  500.
 0.30  750.
 0.28 1000.
 0.28 1250.
 0.30 1500.
 0.35 1600.
 0.38 1700.
 0.34 1800.
 0.32 1900.
 0.35 2000.
 0.33 2100.
 0.32 2200.
 0.31 2300.
 0.32 2387.