condition mean min max 3 h after light 11.5883 11.1599 12.0858 6 h after light 13.876066666666667 12.054 15.4423 9 h after light 13.7672 12.061 15.4116 12 h after light 14.8292 13.9968 15.8035 3 h after dark 21.7804 19.6264 23.642 6 h after dark 15.4313 13.8495 17.1147 9 h after dark 11.507033333333334 9.5466 13.8411 12 h after dark 11.8917 11.7301 12.0533