condition	mean	min	max
4 h after light	8.6363	8.6363	8.6363
8 h after light	8.6050805	8.573861	8.6363
12 h after light	8.5476985	8.357562	8.737835
4 h after dark	8.4778	8.094919	8.860681
8 h after dark	7.766655	7.437015	8.096295
12 h after dark	9.081137	9.081137	9.081137