condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.1456715 0.0 0.291343 4 h after dark 0.0 0.0 0.0 8 h after dark 0.2845803333333333 0.0 0.853741 12 h after dark 0.0 0.0 0.0