condition mean min max 4 h after light 1151.7 1151.7 1151.7 8 h after light 1220.95 852.4 1589.5 12 h after light 1078.05 935.9 1220.2 4 h after dark 996.3 575.9 1416.7 8 h after dark 1135.9 986.9 1284.9 12 h after dark 1801.6999999999998 1772.8 1830.6