condition	mean	min	max
4 h after light	4.273393333333333	4.22955	4.31283
8 h after light	4.227726666666666	4.20866	4.24158
12 h after light	4.293346666666666	4.11297	4.50393
4 h after dark	4.1988900000000005	4.14099	4.23876
8 h after dark	4.27126	4.232530000000001	4.3301300000000005
12 h after dark	4.27271	4.2221400000000004	4.35455