condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0863845 0.0 0.172769 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0251622 0.0 0.0503244 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0