condition mean min max 4 h after light 6319.799333333333 6078.8 6756.643 8 h after light 5278.355333333334 4286.804 6044.268 12 h after light 4312.75 3620.4429999999998 5550.772 16 h after light 7249.522 6014.709 9159.942 4 h after dark 5316.515 4609.073 6198.619000000001 8 h after dark 4242.647 3662.548 4746.416