Simulations were performed on all 206 stable clathrate structures, at 9 temperatures between 200 and 400 K and for 6 pressures between 0.05 and 4 bar, i.e. more than 11.000 Monte Carlo simulations. These simulations were executed on an in-house computer cluster, using an ad hocPython server-client implementation based on CLilly . The GCMC simulations required about 90.000 CPU-hours, all other calculations performed in this study are negligible in comparison.