condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0227345 0.0 0.045469 8 h after light 0.09257024999999999 0.0912516 0.0938889 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