condition mean min max 4 h after light 2692.9 2692.9 2692.9 8 h after light 2122.8 1991.9 2253.7 12 h after light 1762.35 1756.4 1768.3 4 h after dark 2026.5 1583.2 2469.8 8 h after dark 2013.75 1868.5 2159.0 12 h after dark 1843.1 1728.0 1958.2