condition mean min max 4 h after light 1401.1 1401.1 1401.1 8 h after light 1514.65 1408.0 1621.3 12 h after light 1809.9499999999998 1605.1 2014.8 4 h after dark 1736.9499999999998 1545.6 1928.3 8 h after dark 1621.25 1458.8 1783.7 12 h after dark 1433.3000000000002 1373.7 1492.9