condition mean min max 4 h after light 996.7 996.7 996.7 8 h after light 2228.3999999999996 1061.6 3395.2 12 h after light 3248.95 2762.6 3735.3 4 h after dark 3410.25 2438.9 4381.6 8 h after dark 2985.15 1675.2 4295.1 12 h after dark 1522.0 1323.5 1720.5