condition mean min max 0 h after light 7.935655000000001 7.68227 8.18904 2 h after light 7.29643 7.09243 7.50043 4 h after light 6.855169999999999 5.38966 8.32068 8 h after light 11.992535 8.94037 15.0447 12 h after light 20.5527 19.7393 21.3661 2 h after dark 20.503700000000002 19.2703 21.7371 4 h after dark 13.29175 12.9305 13.653 8 h after dark 13.1283 10.395 15.8616 12 h after dark 6.921715 6.72546 7.11797