condition	mean	min	max
0 h after light	1.683985	1.53478	1.83319
4 h after light	2.61965	2.50261	2.73669
8 h after light	3.63808	3.30489	3.97127
4 h after dark	3.557835	3.49224	3.62343
8 h after dark	2.742975	2.52096	2.96499
12 h after dark	2.008115	1.70957	2.30666