condition mean min max 4 h after light 10.17755 10.1206 10.2345 8 h after light 10.857099999999999 10.5373 11.1769 12 h after light 9.773019999999999 9.01944 10.5266 4 h after dark 14.2367 12.2712 15.7163 8 h after dark 22.510133333333332 20.1721 26.4303 12 h after dark 12.178466666666667 11.4198 13.2366