condition	mean	min	max
4 h after light	8.750638	7.868173	9.633103
8 h after light	8.037892500000002	8.001169	8.074616
12 h after light	8.036908	7.502826	8.57099
4 h after dark	7.61262	7.013481	8.211759
8 h after dark	7.2838695	6.71116	7.856579
12 h after dark	6.528758	6.528758	6.528758