M	N₁(M)	Probability of exceedance (% ) for t years						T_R (Years)
M	N₁(M)	t = 1	t = 5	t = 10	t = 20	t = 50	t = 100	T_R (Years)
4.0	38.55	100	100	100	100	100	100	0.03
4.5	13.89	100	100	100	100	100	100	0.07
5.0	5.00	99.3	100	100	100	100	100	0.20
5.5	1.80	83.5	100	100	100	100	100	0.56
6.0	0.65	47.7	96	100	100	100	100	1.54
6.5	0.23	20.8	69	90	99	100	100	4.28
7.0	0.08	8.1	34	57	81	99	100	11.88
7.5	0.03	3.0	14	26	45	78	95	32.99
7.6	0.02	2.4	12	22	39	71	92	40.47