condition	mean	min	max
4 h after light	8.832396	8.711141	8.953651
8 h after light	9.0864185	8.698769	9.474068
12 h after light	8.691578	8.684387	8.698769
4 h after dark	9.466772	8.573861	10.359683
8 h after dark	8.359161	8.019553	8.698769
12 h after dark	9.067028	9.067028	9.067028