condition	mean	min	max
4 h after light	2.312385	2.11076	2.51401
8 h after light	2.27794	1.82794	2.72794
12 h after light	1.983155	1.86139	2.10492
4 h after dark	1.9912750000000001	1.69673	2.28582
8 h after dark	2.532585	2.21542	2.84975
12 h after dark	3.403165	3.01056	3.79577