condition mean min max 3 h after light 6.60226 5.0575 9.15522 6 h after light 6.887416666666667 4.94171 8.47708 9 h after light 9.543099999999999 8.22083 11.196 12 h after light 10.76938 7.54424 12.7592 3 h after dark 18.2046 15.7746 20.839 6 h after dark 12.328866666666666 10.6189 13.2388 9 h after dark 13.051166666666667 10.0744 15.1042 12 h after dark 9.27621 6.50216 13.2147