condition mean min max 2 h after light 5.233805 2.74768 6.90325 6 h after light 8.524575 7.05742 9.52455 10 h after light 11.920868333333333 9.43471 17.2441 14 h after light 13.4024 7.68381 18.0891 18 h after light 8.970781666666667 6.20173 12.6263 2 h after dark 18.778716666666668 11.9553 23.7017