condition mean min max 4 h after light 2116.6683333333335 1883.996 2274.197 8 h after light 1301.5709333333334 556.0978 1968.931 12 h after light 1425.01 875.1030000000001 2040.6429999999998 16 h after light 2595.1856666666667 1844.884 4025.72 4 h after dark 2135.0353333333333 1743.869 2355.8320000000003 8 h after dark 1647.316 1405.826 1780.26