condition mean min max 0 h after light 29.8577 27.8389 31.8765 2 h after light 20.5581 19.5219 21.5943 4 h after light 16.0614 14.6366 17.4862 8 h after light 11.7369 10.5853 12.8885 12 h after light 17.4043 15.8864 18.9222 2 h after dark 15.71695 13.4559 17.978 4 h after dark 18.38745 17.9235 18.8514 8 h after dark 28.5559 27.3272 29.7846 12 h after dark 32.7071 32.4181 32.9961