condition mean min max 4 h after light 15.665849999999999 13.6818 17.6499 8 h after light 10.646374999999999 9.09615 12.1966 12 h after light 7.772425 6.00111 9.54374 4 h after dark 38.6583 33.8835 42.0277 8 h after dark 19.562266666666666 17.0347 22.2155 12 h after dark 28.520033333333334 25.03 33.0496