condition mean min max 0 h after light 11.65755 11.2497 12.0654 4 h after light 6.587680000000001 6.03742 7.13794 8 h after light 14.71885 13.9426 15.4951 4 h after dark 16.14295 13.4134 18.8725 8 h after dark 12.904050000000002 12.6789 13.1292 12 h after dark 8.75738 7.72838 9.78638