condition	mean	min	max
4 h after light	6.53015	6.42634	6.63396
8 h after light	6.287205	6.0539	6.52051
12 h after light	5.961715	5.91691	6.00652
4 h after dark	6.375686666666667	6.12905	6.52001
8 h after dark	5.218916666666667	4.48411	6.36192
12 h after dark	7.225756666666666	6.26097	8.1853