condition mean min max 3 h after light 15.817608333333332 10.8859 20.957 7 h after light 15.81392 9.93224 24.967 11 h after light 14.749788333333333 9.02964 19.2097 2 h after dark 16.004025 10.8357 22.1668 6 h after dark 16.821075 11.037 24.5855 10 h after dark 15.4349 8.83667 23.3941