condition mean min max 0 h after light 1.40551 1.40426 1.40676 4 h after light 3.8099950000000002 3.1844 4.43559 8 h after light 2.61236 2.22288 3.00184 4 h after dark 0.5524815 0.415383 0.68958 8 h after dark 0.41607150000000004 0.278935 0.553208 12 h after dark 1.0395605 0.981661 1.09746