Table 2. Fertility metrics as a function of the number of cycles of attempted conception for example 1.

Number of cycles elapsed	Proportion of remaining population who are sterile	Median intrinsic conception rate in remaining population	90th percentile of intrinsic conception rate in remaining population	Probability of conceiving in next cycle	Probability of conceiving in next 12 cycles	Cumulative probability of conception
0	0.050	0.356	0.633	0.364	0.906	0.000
1	0.079	0.292	0.551	0.303	0.861	0.364
3	0.151	0.205	0.431	0.217	0.758	0.670
6	0.282	0.122	0.314	0.138	0.596	0.823
9	0.414	0.062	0.237	0.090	0.452	0.879
12	0.530	0.000	0.183	0.060	0.337	0.906
18	0.699	0.000	0.112	0.029	0.189	0.928
24	0.800	0.000	0.067	0.015	0.111	0.938
35	0.895	0.000	0.012	0.006	0.048	0.944
36	0.900	0.000	0.000	0.005	0.045	0.944

In example 1: 5% of couples are assumed to be sterile (intrinsic conception rate = 0). The remaining 95% are assumed to have intrinsic conception rates described by a beta distribution with parameters α = 2.3 and β = 3.7.