condition	mean	min	max
4 h after light	6.6063133333333335	6.47081	6.67512
8 h after light	6.5275	6.29662	6.7003699999999995
12 h after light	6.587366666666667	6.34227	6.714810000000001
4 h after dark	6.6558600000000006	6.557180000000001	6.731510000000001
8 h after dark	6.697636666666667	6.543830000000001	6.8254
12 h after dark	6.7769200000000005	6.728160000000001	6.8543199999999995