condition mean min max 0 h after light 0.52847 0.0 1.05694 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 0.0 0.0 0.0 2 h after dark 0.54948 0.0 1.09896 4 h after dark 0.0 0.0 0.0 8 h after dark 0.53247 0.0 1.06494 12 h after dark 0.0 0.0 0.0