condition mean min max 4 h after light 20.2691635 20.181394 20.356933 8 h after light 22.284005 22.146946 22.421064 12 h after light 19.82844 19.546644 20.110236 4 h after dark 22.8963705 18.727148 27.065593 8 h after dark 40.8530975 16.559472 65.146723 12 h after dark 20.884886 20.884886 20.884886