condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.024538133333333333 0.0 0.0736144 6 h after dark 0.029389833333333334 0.0 0.0881695 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0438186 0.0 0.0876372