condition	mean	min	max
4 h after light	4.02985	3.96918	4.09169
8 h after light	3.99456	3.92498	4.051480000000001
12 h after light	3.96048	3.9164800000000004	4.02616
4 h after dark	4.104996666666667	4.06878	4.1651
8 h after dark	4.202286666666667	4.11303	4.26495
12 h after dark	4.244363333333333	4.13544	4.36101