condition	mean	min	max
4 h after light	5.876773333333333	5.7308699999999995	5.9841
8 h after light	5.92476	5.73821	6.1233900000000006
12 h after light	5.871643333333333	5.81663	5.96084
4 h after dark	6.044953333333333	5.86987	6.31273
8 h after dark	5.966939999999999	5.8626	6.171819999999999
12 h after dark	5.8918333333333335	5.88183	5.89961