condition	mean	min	max
4 h after light	6.121615	5.04604	7.19719
8 h after light	5.953695	5.37789	6.5295
12 h after light	6.033200000000001	5.8829	6.1835
4 h after dark	6.8658	6.27687	7.45473
8 h after dark	7.072765	6.36949	7.77604
12 h after dark	8.31508	7.80331	8.82685