condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.01605645 0.0 0.0321129 8 h after light 0.0165775 0.0 0.033155 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0