condition	mean	min	max
4 h after light	3.8330200000000003	3.00928	4.65676
8 h after light	3.06943	2.83794	3.30092
12 h after light	3.50033	3.36588	3.63478
4 h after dark	8.98757	8.18905	9.65816
8 h after dark	7.995153333333334	7.75614	8.20026
12 h after dark	7.994436666666666	7.03525	9.19411