condition	mean	min	max
4 h after light	3.20832	3.08128	3.33536
8 h after light	4.28061	4.19324	4.36798
12 h after light	3.4616800000000003	3.30037	3.62299
4 h after dark	3.8505200000000004	2.92639	4.77465
8 h after dark	2.95148	2.64195	3.26101
12 h after dark	2.91066	2.84637	2.97495