condition	mean	min	max
4 h after light	2.35709	2.01139	2.70279
8 h after light	2.048235	1.81832	2.27815
12 h after light	2.21142	2.05883	2.36401
4 h after dark	3.289145	3.19713	3.38116
8 h after dark	3.23303	3.19006	3.276
12 h after dark	3.187955	2.82139	3.55452