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 0.021579200000000003 0.0 0.0647376 6 h after dark 0.030218766666666664 0.0 0.0906563 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0