condition	mean	min	max
4 h after light	9.137953333333334	9.02196	9.20304
8 h after light	9.20304	9.031410000000001	9.35522
12 h after light	9.6474	9.54237	9.7174
4 h after dark	9.69209	9.50102	9.80246
8 h after dark	9.814983333333332	9.733939999999999	9.862219999999999
12 h after dark	9.61562	9.50184	9.75902