condition	mean	min	max
4 h after light	1.0445235	0.952287	1.13676
8 h after light	1.0084945	0.869509	1.14748
12 h after light	0.8720095	0.839014	0.905005
4 h after dark	1.219527	0.940144	1.49891
8 h after dark	1.186035	1.17922	1.19285
12 h after dark	1.49999	1.48695	1.51303