condition	mean	min	max
4 h after light	5.314486666666666	5.24782	5.364719999999999
8 h after light	5.3083	5.24288	5.36185
12 h after light	5.24397	5.11669	5.3932199999999995
4 h after dark	5.29382	5.27053	5.33979
8 h after dark	5.19627	5.11206	5.26821
12 h after dark	5.182826666666666	5.09049	5.29205