condition	mean	min	max
0 h after light	9.54659	8.81208	10.2811
4 h after light	6.291255	5.84198	6.74053
8 h after light	7.523605	6.68566	8.36155
4 h after dark	7.87068	6.78245	8.95891
8 h after dark	8.79016	8.20687	9.37345
12 h after dark	8.432855	7.91804	8.94767