condition	mean	min	max
4 h after light	2.68611	2.56256	2.80966
8 h after light	1.9555349999999998	1.85178	2.05929
12 h after light	2.999825	2.84755	3.1521
4 h after dark	9.9903	9.6862	10.2009
8 h after dark	8.328373333333333	7.54844	9.49505
12 h after dark	8.99113	8.20493	9.41008