condition	mean	min	max
4 h after light	7.5802625	7.514383	7.646142
8 h after light	7.676239	7.110699	8.241779
12 h after light	7.0788355	6.643288	7.514383
4 h after dark	8.056213	6.893397	9.219029
8 h after dark	7.42858	7.427017	7.430143
12 h after dark	8.234197	8.234197	8.234197