Comparison of the SH evolution for different combination of parameters with B_SH = 92 pc and for the observations. The black triangles are the mean SH obtained from 1000 bootstrap runs on the observational sample and the error bars are the standard deviations; the blue curve corresponds to a run without any disruption mechanism activated; the brown curve includes only mass loss due to stellar and dynamical evolution; and the pink, orange, and green curves include only disruption due to encounters with GMCs, with different intensities and dissolution scale heights. The curves correspond to the averages of ten independent runs and the shaded regions are the standard deviations.