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		Frequency	Percent	Valid Percent	Cumulative Percent
Valid	Villa	20	.8	12.6	12.6
	Apartment	39	1.6	24.5	37.1
	Single house	100	4.2	62.9	100.0
	Total	159	6.7	100.0
Missing	99	1048	44.2
	System	1166	49.1
	Total	2214	93.3
Total		2373	100.0