condition	mean	min	max
4 h after light	8.455095	6.84579	10.0644
8 h after light	4.447274999999999	4.3796	4.51495
12 h after light	5.37819	4.52775	6.22863
4 h after dark	10.484200000000001	10.2032	10.7652
8 h after dark	11.56155	11.2981	11.825
12 h after dark	13.12075	12.4432	13.7983