condition	mean	min	max
4 h after light	8.792349999999999	8.65469	8.93001
8 h after light	10.27016	9.80752	10.7328
12 h after light	9.805025	9.62358	9.98647
4 h after dark	13.09975	13.0308	13.1687
8 h after dark	13.047550000000001	12.6735	13.4216
12 h after dark	12.3031	11.5082	13.098