condition	mean	min	max
4 h after light	6.53542	6.28876	6.78208
8 h after light	7.987885	7.96603	8.00974
12 h after light	7.433315	7.17202	7.69461
4 h after dark	11.74925	10.6846	12.8139
8 h after dark	10.91435	10.8275	11.0012
12 h after dark	9.69343	9.68802	9.69884