condition	mean	min	max
4 h after light	3.72229	3.53474	3.90984
8 h after light	5.48961	5.446	5.53322
12 h after light	6.21877	4.63948	7.79806
4 h after dark	8.17615	8.03292	8.31938
8 h after dark	7.13536	6.4043	7.86642
12 h after dark	5.23355	4.82967	5.63743