condition mean min max 0 h after light 6.516795 5.96557 7.06802 4 h after light 9.38487 8.53324 10.2365 8 h after light 88.33715 85.2498 91.4245 4 h after dark 24.65885 20.3046 29.0131 8 h after dark 11.51965 10.7338 12.3055 12 h after dark 4.114425000000001 3.47426 4.75459