condition mean min max 4 h after light 147.760698 142.507295 153.014101 8 h after light 133.030382 127.299781 138.760983 12 h after light 115.830414 107.992101 123.668727 4 h after dark 101.87152 75.908351 127.834689 8 h after dark 97.0619725 81.640892 112.483053 12 h after dark 111.30898 111.30898 111.30898