condition	mean	min	max
4 h after light	3.0075700000000003	2.84553	3.16961
8 h after light	3.79526	3.79088	3.79964
12 h after light	3.918355	3.68477	4.15194
4 h after dark	4.4553899999999995	4.22441	4.68637
8 h after dark	4.31067	4.13435	4.48699
12 h after dark	3.959715	3.92857	3.99086