condition mean min max 2 h after light 8.53931 8.22717 8.77943 6 h after light 12.052733333333334 10.5012 13.2045 10 h after light 12.6914 12.1174 13.5424 2 h after dark 19.7101 19.3391 20.0908 6 h after dark 33.51283333333333 30.3608 37.5736 10 h after dark 29.346899999999998 26.6516 30.7258