condition mean min max 4 h after light 1378.2 1378.2 1378.2 8 h after light 1385.6999999999998 1383.6 1387.8 12 h after light 1208.25 1132.6 1283.9 4 h after dark 1321.25 1185.0 1457.5 8 h after dark 1600.0 1301.4 1898.6 12 h after dark 1511.6 1342.1 1681.1