condition	mean	min	max
4 h after light	5.95518	5.88806	5.99111
8 h after light	6.052896666666666	5.8299900000000004	6.183269999999999
12 h after light	6.71343	6.5423	6.88466
4 h after dark	6.753253333333333	6.64042	6.9146
8 h after dark	6.95862	6.67628	7.136769999999999
12 h after dark	6.665433333333333	6.552309999999999	6.860469999999999