condition	mean	min	max
4 h after light	16.09455	14.8024	17.3867
8 h after light	19.515050000000002	18.9877	20.0424
12 h after light	15.57925	13.9952	17.1633
4 h after dark	15.252666666666666	14.2336	16.4218
8 h after dark	11.210966666666666	10.2404	11.9843
12 h after dark	11.58949	9.62177	13.7172