condition mean min max 4 h after light 1726.393 1707.51 1760.001 8 h after light 1939.3239999999998 1525.0 2292.1929999999998 12 h after light 1753.932 1500.236 1997.91 16 h after light 3654.3763333333336 3373.85 4172.742 4 h after dark 2939.150666666667 2902.1690000000003 3006.792 8 h after dark 1950.8593333333333 1500.954 2212.709