condition	mean	min	max
4 h after light	9.5479725	9.35542	9.740525
8 h after light	8.31199	7.628781	8.995199
12 h after light	8.2851495	7.87153	8.698769
4 h after dark	8.4468225	8.194876	8.698769
8 h after dark	8.501049	8.303329	8.698769
12 h after dark	8.236724	8.236724	8.236724