condition mean min max 4 h after light 19.5823 18.9354 20.2292 8 h after light 14.88015 14.342 15.4183 12 h after light 5.75883 5.67178 5.84588 4 h after dark 7.3474466666666665 6.33318 7.91126 8 h after dark 7.330846666666666 6.29411 8.20568 12 h after dark 13.626733333333332 11.8692 16.0599