condition mean min max 4 h after light 3.5542949999999998 3.14859 3.96 8 h after light 3.510075 3.45615 3.564 12 h after light 3.11465 3.06285 3.16645 4 h after dark 3.5063233333333335 3.18257 3.81016 8 h after dark 4.413986666666666 3.87363 4.72489 12 h after dark 3.5273433333333335 3.14644 3.87625