condition mean min max 4 h after light 5.36257 3.34784 7.23811 8 h after light 8.70001 3.83909 13.1914 12 h after light 8.31838 3.9027 15.5773 4 h after dark 5.688 3.92094 7.70466 8 h after dark 1.76196 1.00148 2.14972 12 h after dark 2.216893333333333 1.59854 2.76384