condition	mean	min	max
4 h after light	8.485121	8.285855	8.684387
8 h after light	8.5650525	8.387256	8.742849
12 h after light	8.5358215	8.387256	8.684387
4 h after dark	8.060027999999999	7.657828	8.462228
8 h after dark	8.774902	8.684387	8.865417
12 h after dark	8.948263	8.948263	8.948263