condition	mean	min	max
4 h after light	9.273443	9.138912	9.407974
8 h after light	9.1888045	9.185177	9.192432
12 h after light	9.237610499999999	9.138912	9.336309
4 h after dark	8.7924015	8.491049	9.093754
8 h after dark	9.9868585	9.958558	10.015159
12 h after dark	9.138912	9.138912	9.138912