condition mean min max 4 h after light 1481.3 1481.3 1481.3 8 h after light 1380.95 1370.7 1391.2 12 h after light 1172.1999999999998 1060.3 1284.1 4 h after dark 1733.7 1292.4 2175.0 8 h after dark 1800.1999999999998 1496.2 2104.2 12 h after dark 1803.55 1654.6 1952.5