400	60	26.8
600	62	29
800	63	31.6
1000	61	31.3
1200	58	30.4
1400	62	32.7
1600	57	32.6
1800	59	32.4
2000	61	33.5
2200	60	34.5
2400	60	35.3
2600	62	37.4
2800	63	38.8
3000	61	38.5
3200	58	39.2
3400	62	43.4
3600	57	41.3
3800	59	43.2
4000	61	46.3