Your assignment calls for you to use quantitative data to support your arguments. You can trace the original data sources used by articles in your literature review, or find your own data. This page has some helpful sources.
Finding statistical data can be complex, so don't hesitate to call me for help.
A summary of statistics on the social, political and economic conditions of the United States. Excel and PDF files of data tables are available for download. Coverage from 1970 to present.
Quantitative data on American history. Topics covered include: population, work and welfare, economics, international relations and governance.
Analysis, reports, data, and news for U.S. and international industries, companies and brands, consumers, and economies.
From the International Monetary Fund (IMF), international financial data and macroeconomic indicators including measures of money supply, exchange rates, trade/balance of payments, prices/inflation, interest rates, employment, and national income & product accounts.
Go to this guide for many more statistical data resources: