condition	mean	min	max
4 h after light	2.37147	2.10757	2.63537
8 h after light	2.581905	2.51759	2.64622
12 h after light	2.71604	2.17958	3.2525
4 h after dark	4.57596	4.32041	4.83151
8 h after dark	3.665375	3.51186	3.81889
12 h after dark	3.90669	3.61749	4.19589