PercentOfPop	AveHouseIncome	PercentSingle	PercentWithChildren
PercentOfPop	1.00
AveHouseIncome	-0.31	1.00
PercentSingle	0.72	-0.58	1.00
PercentWithChildren	-0.63	0.74	-0.87	1.00
	Membership is strongly correlated with number of singles in a postal area
	Membership is strongly NEGATIVELY correlated with number of households with children in a postal area
	Membership is somewhat and Negatively correlated with average household income in a postal area
	Postal areas with lots of singles tend to have more than average number of NCF members