condition mean min max 0 h after light 12.661349999999999 10.8371 14.4856 4 h after light 15.59975 15.5319 15.6676 8 h after light 30.146250000000002 25.3839 34.9086 4 h after dark 35.7427 30.2071 41.2783 8 h after dark 18.5196 18.2106 18.8286 12 h after dark 14.15465 11.2308 17.0785