condition	mean	min	max
4 h after light	4.39449	4.38687	4.4077
8 h after light	4.42055	4.41369	4.4248400000000006
12 h after light	4.340800000000001	4.23604	4.4029300000000005
4 h after dark	4.447673333333333	4.31956	4.62717
8 h after dark	4.371156666666667	4.33211	4.40806
12 h after dark	4.38422	4.32253	4.43778