condition mean min max 0 h after light 3.151905 2.96326 3.34055 2 h after light 1.878895 1.83022 1.92757 4 h after light 2.213065 2.19947 2.22666 8 h after light 3.374355 3.3119 3.43681 12 h after light 6.603975 6.03916 7.16879 2 h after dark 5.750495 4.97988 6.52111 4 h after dark 4.94034 4.46929 5.41139 8 h after dark 5.1391849999999994 4.53887 5.7395 12 h after dark 3.164105 2.62447 3.70374