condition	mean	min	max
4 h after light	5.392246666666667	5.20521	5.68811
8 h after light	5.215873333333334	4.99648	5.40944
12 h after light	5.2546100000000004	5.11104	5.34025
4 h after dark	5.50406	5.25206	5.90648
8 h after dark	5.52162	5.280530000000001	5.81727
12 h after dark	5.332186666666667	5.273630000000001	5.43851