condition	mean	min	max
4 h after light	3.081255	2.72093	3.44158
8 h after light	1.70948	1.62075	1.79821
12 h after light	2.52022	2.42975	2.61069
4 h after dark	3.90213	3.72739	3.99571
8 h after dark	3.685293333333333	3.02954	4.16109
12 h after dark	2.46922	2.15604	2.89307