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 0.039651 0.0 0.079302 12 h after light 0.0 0.0 0.0 2 h after dark 0.0859515 0.0 0.171903 4 h after dark 0.03829755 0.0 0.0765951 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0