condition mean min max 0 h after light 8.71591 7.27292 10.1589 2 h after light 7.223115 7.2206 7.22563 4 h after light 5.494455 5.12591 5.863 8 h after light 4.926075 4.63791 5.21424 12 h after light 17.15285 17.0843 17.2214 2 h after dark 10.7363 10.0246 11.448 4 h after dark 10.345675 9.77275 10.9186 8 h after dark 11.0299 10.4315 11.6283 12 h after dark 9.24379 9.04667 9.44091