condition	mean	min	max
4 h after light	2.22849	1.73958	2.7174
8 h after light	2.85161	2.62776	3.07546
12 h after light	3.384185	3.18318	3.58519
4 h after dark	4.46378	4.02494	4.90262
8 h after dark	4.31139	4.17916	4.44362
12 h after dark	3.8148	3.59004	4.03956