condition mean min max 0 h after light 12.6294 12.2573 13.0015 4 h after light 13.680250000000001 13.5068 13.8537 8 h after light 9.868915 9.7511 9.98673 4 h after dark 11.96145 11.5324 12.3905 8 h after dark 21.24275 20.5933 21.8922 12 h after dark 18.61235 13.5781 23.6466