condition mean min max 4 h after light 1678.1 1678.1 1678.1 8 h after light 1671.9499999999998 1634.1 1709.8 12 h after light 1811.5 1418.9 2204.1 4 h after dark 2057.9 1940.2 2175.6 8 h after dark 1933.15 1872.5 1993.8 12 h after dark 1968.9 1887.2 2050.6