condition mean min max 0 h after light 13.10355 12.7547 13.4524 4 h after light 21.2635 20.0848 22.4422 8 h after light 30.022399999999998 28.3276 31.7172 4 h after dark 32.2773 26.405 38.1496 8 h after dark 27.49895 21.8805 33.1174 12 h after dark 16.0947 11.0877 21.1017