condition	mean	min	max
4 h after light	5.28095	5.126930000000001	5.46833
8 h after light	5.276590000000001	5.05475	5.61132
12 h after light	5.13947	4.99239	5.28105
4 h after dark	5.344976666666667	5.05886	5.86702
8 h after dark	5.20638	5.01205	5.427980000000001
12 h after dark	5.268313333333333	5.06285	5.582319999999999