condition mean min max 4 h after light 10.4142885 10.027204 10.801373 8 h after light 9.4364135 9.288396 9.584431 12 h after light 9.9917365 9.842208 10.141265 4 h after dark 10.0714835 10.001702 10.141265 8 h after dark 10.534897999999998 9.099317 11.970479 12 h after dark 13.277305 13.277305 13.277305