condition	mean	min	max
4 h after light	7.9903425	7.928493	8.052192
8 h after light	8.8870545	8.165121	9.608988
12 h after light	8.054452	7.646142	8.462762
4 h after dark	7.979756999999999	7.254848	8.704666
8 h after dark	8.6563145	8.358327	8.954302
12 h after dark	9.509266	9.509266	9.509266