American Community Survey | 2005-2009 Summary of Questionnaire Changes [PDF 2.5MB] |
2005-2008 Summary of Questionnaire Changes [PDF 2.2MB] | |
1996-2007 Summary of Housing Question Changes [PDF 53KB] | |
1996-2007 Summary of Person Question Changes [PDF 74KB] | |
Puerto Rico Community Survey | 2005-2009 Summary of Questionnaire Changes [PDF 2.2MB] |
2005-2008 Summary of Questionnaire Changes [PDF 1.8MB] |
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