condition mean min max 4 h after light 4.362155 3.91889 4.80542 8 h after light 3.456655 3.45107 3.46224 12 h after light 3.710815 3.6781 3.74353 4 h after dark 4.06956 3.79681 4.47809 8 h after dark 3.6319666666666666 3.37839 3.83947 12 h after dark 3.6083066666666666 3.43802 3.73235