condition mean min max 4 h after light 2096.5 2096.5 2096.5 8 h after light 1588.85 1369.8 1807.9 12 h after light 779.3 410.5 1148.1 4 h after dark 596.8 320.6 873.0 8 h after dark 710.1500000000001 609.6 810.7 12 h after dark 754.4 641.4 867.4