condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.04779063333333333 0.0 0.0777986 12 h after light 0.037947 0.0 0.113841 4 h after dark 0.0 0.0 0.0 8 h after dark 0.05562216666666667 0.0 0.11922 12 h after dark 0.11772946666666667 0.0534344 0.188027