condition	mean	min	max
4 h after light	9.1439175	8.542403	9.745432
8 h after light	7.67121	7.582567	7.759853
12 h after light	8.499493	8.315997	8.682989
4 h after dark	7.846442	7.632738	8.060146
8 h after dark	7.738809	7.276318	8.2013
12 h after dark	8.060146	8.060146	8.060146