condition mean min max 0 h after light 1313.9 1301.08 1326.72 4 h after light 3071.1949999999997 3056.29 3086.1 8 h after light 2453.28 2360.8 2545.76 4 h after dark 280.1485 254.328 305.969 8 h after dark 485.098 471.177 499.019 12 h after dark 1542.24 1434.03 1650.45