condition	mean	min	max
4 h after light	8.295923333333333	8.075619999999999	8.55684
8 h after light	8.486576666666666	8.24049	8.71776
12 h after light	8.41612	8.210289999999999	8.668660000000001
4 h after dark	8.358699999999999	8.03558	8.57278
8 h after dark	8.331523333333333	7.94678	8.539660000000001
12 h after dark	7.83373	7.697939999999999	7.96823