Source: Data for years 2006-2012, came from Centers for Medicare & Medicaid Services, Office of Information Services: Data from the Part D Denominator File; data development by the Office of Information Products & Data Analytics; http://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/MedicareMedicaidStatSupp/Downloads/2013_Section14.pdf. Data for years 2013-2016,came from Centers for Medicare & Medicaid Services, Medicare Enrollment Dashboard, https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/CMSProgramStatistics/Dashboard.html . 

Notes: Internal These data come from file "V:\OED\Pol&Strat\PPI\PPI\Health Data for Datacenter\Final Data\RX Data\PDP vs MA-PD.xlsx", sheet  "Compiled", Columns A thru F.

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