condition	mean	min	max
4 h after light	10.276135	9.17297	11.3793
8 h after light	8.213775	7.68523	8.74232
12 h after light	9.01333	7.97626	10.0504
4 h after dark	11.6186	10.1199	13.1173
8 h after dark	11.5137	11.4606	11.5668
12 h after dark	12.3933	12.1204	12.6662