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 0.0 0.0 0.0 4 h after dark 0.25752200000000003 0.255674 0.25937 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0