condition	mean	min	max
0 h after light	9.116135	9.10766	9.12461
4 h after light	7.724729999999999	7.10326	8.3462
8 h after light	5.8437	5.67711	6.01029
4 h after dark	6.93603	5.28176	8.5903
8 h after dark	7.72653	7.55248	7.90058
12 h after dark	5.981695	5.05909	6.9043