condition	mean	min	max
4 h after light	5.34501	5.2325	5.44969
8 h after light	5.24429	5.15065	5.363090000000001
12 h after light	5.162926666666666	5.00526	5.3646400000000005
4 h after dark	5.14006	4.98885	5.2579
8 h after dark	5.093953333333333	4.9694	5.16
12 h after dark	5.12248	5.06188	5.16434