condition	mean	min	max
4 h after light	8.733635	8.733635	8.733635
8 h after light	8.728007999999999	8.387326	9.06869
12 h after light	8.318257	8.173776	8.462738
4 h after dark	9.277965	8.691309	9.864621
8 h after dark	9.32319	8.55548	10.0909
12 h after dark	9.055757	9.055757	9.055757