condition	mean	min	max
4 h after light	5.148243333333333	5.141380000000001	5.153490000000001
8 h after light	5.20277	5.0456	5.4189300000000005
12 h after light	5.20568	5.1144	5.38114
4 h after dark	5.15175	5.04786	5.34883
8 h after dark	5.1773	5.10191	5.2525900000000005
12 h after dark	5.196766666666667	4.98046	5.56211