condition mean min max 0 h after light 7.587115000000001 7.50135 7.67288 4 h after light 9.535810000000001 9.13681 9.93481 8 h after light 8.439115000000001 8.28104 8.59719 4 h after dark 10.145405 9.07921 11.2116 8 h after dark 11.430250000000001 11.0166 11.8439 12 h after dark 8.035695 7.94721 8.12418