condition mean min max 3 h after light 4.97664 3.67195 7.50495 6 h after light 7.637573333333333 5.09409 10.1503 9 h after light 11.742673333333332 7.44902 15.1488 12 h after light 6.978955 5.56998 8.2551 3 h after dark 26.1866 19.3198 31.4651 6 h after dark 22.494733333333333 16.9819 25.7519 9 h after dark 14.6074 12.8447 17.5952 12 h after dark 12.9614 10.3866 15.5362