condition mean min max 4 h after light 0.6493665 0.521919 0.776814 8 h after light 0.2822205 0.141583 0.422858 12 h after light 0.4940365 0.342519 0.645554 4 h after dark 1.2511299999999999 1.12849 1.37377 8 h after dark 0.702914 0.508966 0.896862 12 h after dark 0.691454 0.445401 0.937507