0	0.00000
50	0.00002
100	0.00009
150	0.00021
200	0.00035
250	0.00058
300	0.00087
350	0.00119
400	0.00161
450	0.00194
500	0.00246
550	0.00331
600	0.00405
650	0.00487
700	0.00539
750	0.00685
800	0.00805
850	0.00894
900	0.01080
950	0.01217
1000	0.01447
1050	0.01751
1100	0.01920
1150	0.02228
1200	0.02638
1250	0.02795
1300	0.03146
1350	0.03737
1400	0.04296
1450	0.04671
1500	0.04969
1550	0.05762
1600	0.06256
1650	0.06289
1700	0.06335
1750	0.07082
1800	0.06568
1850	0.06908
1900	0.07118
1950	0.06382
2000	0.06264
2050	0.06034
2100	0.05808
2150	0.05762
2200	0.05386
2250	0.04862
2300	0.04388
2350	0.04277
2400	0.04239
2450	0.03713
2500	0.03730
2550	0.03456
2600	0.03028
2650	0.03008
2700	0.02842
2750	0.02741
2800	0.02390
2850	0.02280
2900	0.02247
2950	0.02006
3000	0.01924
3050	0.01942
3100	0.01840
3150	0.01797
3200	0.01705
3250	0.01556
3300	0.01464
3350	0.01369
3400	0.01316
3450	0.01256
3500	0.01233
3550	0.01234
3600	0.01124
3650	0.01153
3700	0.01060
3750	0.01078
3800	0.00956
3850	0.00932
3900	0.00947
3950	0.00943
4000	0.00908

    Source: geocities.com/uabinni/archives/03-04

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