Various m₁ (top) and m₂ (bottom) distributions of the detected events with (S/N) > 12 for T_obs = 3 yr (left) and T_obs = 20 yr (right) produced for different random seeds. Raising the total observational time leads to more events being detected and the distributions being better defined. The population, cosmological, merger rate, and detector parameters used are given in Table 4 and the corresponding distributions are represented by the orange lines of Fig. 4.