condition mean min max 4 h after light 3611.2 3611.2 3611.2 8 h after light 3296.8999999999996 3037.7 3556.1 12 h after light 2332.0 1939.7 2724.3 4 h after dark 1898.65 1730.3 2067.0 8 h after dark 1890.3999999999999 1672.1 2108.7 12 h after dark 2651.2 2164.4 3138.0