condition	mean	min	max
4 h after light	8.486284999999999	6.74287	10.2297
8 h after light	6.72817	6.53037	6.92597
12 h after light	8.723845	8.71702	8.73067
4 h after dark	14.580466666666666	13.5252	16.1567
8 h after dark	15.594733333333334	14.925	16.6239
12 h after dark	11.165000000000001	10.3127	12.0385