0.98  250.
 0.77  500.
 0.75  750.
 0.77 1000.
 0.75 1100.
 0.86 1200.
 0.71 1300.
 0.71 1400.
 0.68 1500.
 0.69 1600.
 0.68 1700.
 0.78 1800.
 0.73 1900.
 1.15 1980.