condition	mean	min	max
4 h after light	4.60651	4.53907	4.67395
8 h after light	11.88965	11.4922	12.2871
12 h after light	19.367150000000002	19.0901	19.6442
4 h after dark	18.234099999999998	18.1484	18.3198
8 h after dark	9.71974	9.61239	9.82709
12 h after dark	8.158625	7.85012	8.46713