condition mean min max 2 h after light 15.5947 11.436 20.3508 6 h after light 14.555 10.1859 16.8884 10 h after light 10.4289 7.50712 19.7268 14 h after light 10.558475 7.09054 12.7292 18 h after light 12.39175 10.2073 14.6584 2 h after dark 11.658383333333333 10.2146 15.3862