condition mean min max 4 h after light 13.48766 13.458070000000001 13.5439 8 h after light 13.490146666666668 13.384720000000002 13.59856 12 h after light 13.400183333333333 13.38965 13.410329999999998 4 h after dark 13.084430000000001 13.01167 13.126510000000001 8 h after dark 13.128956666666667 13.102310000000001 13.17423 12 h after dark 13.353956666666667 13.31166 13.384720000000002