condition mean min max 4 h after light 12.1736605 12.120948 12.226373 8 h after light 8.817933 8.387326 9.24854 12 h after light 12.015078500000001 11.714159 12.315998 4 h after dark 10.604897000000001 10.282059 10.927735 8 h after dark 11.177392 11.177392 11.177392 12 h after dark 12.576902 12.576902 12.576902