condition	mean	min	max
4 h after light	5.277375	4.64137	5.91338
8 h after light	4.6099	4.41757	4.80223
12 h after light	5.841355	5.677	6.00571
4 h after dark	6.9007233333333335	6.35802	7.47554
8 h after dark	8.1913	6.53979	9.11944
12 h after dark	5.976143333333333	5.36186	6.86625