Social Security Administration, Office of Policy, Office of Research, Evaluation, and Statistics
2002-
SSA Publication
no. 13-11801, no. 13-11802, no. 13-11803, no. 13-11804
1 : Europe : 2002 , 2 : Asia and the Pasific : 2002 , 3 : Africa : 2003 , 4 : The Americas : 2003 , Europe : 2004 , Asia and the Pasific : 2004 , Africa : 2005 , The Americas : 2005 , Asia and the Pasific : 2006 , Europe : 2006 , Africa : 2007 , The Americas : 2007 , Europe : 2008 , Asia and the Pasific : 2008 , Africa : 2009 , The Americas : 2009 , Europe : 2010 , Asia and the Pasific : 2010 , Africa : 2011 , The Americas : 2011 , Europe : 2012 , Asia and the Pasific : 2012 , Africa : 2013
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