condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.022082 0.0 0.132492 14 h after light 0.02495733333333333 0.0 0.149744 18 h after light 0.0 0.0 0.0 2 h after dark 0.10619366666666667 0.0 0.331386