condition	mean	min	max
4 h after light	1.933595	1.27992	2.58727
8 h after light	1.67386	1.62083	1.72689
12 h after light	1.51186	1.10714	1.91658
4 h after dark	2.79689	2.24114	3.21873
8 h after dark	3.49795	2.80455	4.58664
12 h after dark	3.0244166666666668	2.80655	3.33506