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Sources & Notes

Source: Center for Medicare & Medicaid Statistical Supplement, 2008-2013. Table 14.7, "Medicare Part D: Number of Enrollees, Part D Enrolled, Retiree Drug Subsidy, and Creditable Coverage Status, by Area of Residence", Data used for years 2013-2016 came from CMS Program Statistics, 

Notes: The data from the Center for Medciare & Medicaid (CMS) Statistical Suppplement years 2008-2013, includes data from years 2006-2012. CMS combined data for years 2006& 2007 in 2008 report.CMS produced the Statistical Supplement reports the year after data was collected. Data used for years 2013-2016 came from CMS Program Statistics, which has replaced the Medicare and Medicaid Statistical Supplement. 

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