condition	mean	min	max
4 h after light	2.862225	2.38451	3.33994
8 h after light	1.929635	1.78201	2.07726
12 h after light	1.9773	1.65729	2.29731
4 h after dark	2.94832	2.46592	3.43072
8 h after dark	3.749885	3.19527	4.3045
12 h after dark	3.82043	3.71927	3.92159