condition mean min max 0 h after light 0.02843165 0.0 0.0568633 2 h after light 0.088954 0.0 0.177908 4 h after light 0.232996 0.0 0.465992 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.114228 0.0 0.228456 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0