Modularity with 8 modules: 0.636678200692
Modularity with 7 modules: 0.647923875433
Modularity with 6 modules: 0.642733564014
Modularity with 5 modules: 0.626730103806
Modularity with 4 modules: 0.59991349481
Modularity with 3 modules: 0.496972318339
Modularity with 2 modules: 0.0570934256055

Best modularity: 0.647923875433 with 7 modules.