condition mean min max 0 h after light 9.772655 7.84771 11.6976 2 h after light 7.74967 6.3498 9.14954 4 h after light 8.895795 8.2843 9.50729 8 h after light 5.602595 4.34745 6.85774 12 h after light 4.6854 4.54724 4.82356 2 h after dark 8.560015 8.10846 9.01157 4 h after dark 6.64801 6.62366 6.67236 8 h after dark 9.67592 9.16704 10.1848 12 h after dark 9.44381 7.73262 11.155