condition mean min max 0 h after light 0.9415465 0.890075 0.993018 4 h after light 1.17665 1.06506 1.28824 8 h after light 0.9700344999999999 0.95763 0.982439 4 h after dark 0.694375 0.66729 0.72146 8 h after dark 1.18953 1.02947 1.34959 12 h after dark 0.8271440000000001 0.714798 0.93949