condition	mean	min	max
4 h after light	2.190475	1.93536	2.44559
8 h after light	2.999485	2.80802	3.19095
12 h after light	10.9512	10.6341	11.2683
4 h after dark	15.424399999999999	14.1701	16.6787
8 h after dark	12.100200000000001	12.0402	12.1602
12 h after dark	5.81883	5.69776	5.9399