Notes on Methodology
Except where noted, all data reflects the most recent year that figures were available across all countries listed in a given chart or table. The gun death data (per capita rates don't vary a great deal from year to year) and corresponding population data is from 2011 for the United States; 2010 for Austria, Germany, Croatia, and the Czech Republic; 2009 for Italy; and 2006 for Belgium. Since Brazil, Japan, and Canada don't offer comprehensive gun death stats in any given year, the data combines their stats on gun homicides, gun suicides, and accidental gun deaths for years ranging from 1999 to 2009 to reach an estimate of total gun fatality rates. (Population figures for those three countries were taken from the World Bank's 2011 estimate.) The NRA does not disclose precise donation amounts from all of its corporate sources, but it arranges its corporate donors in various tiers depending on their level of giving. For example, Springfield Armory belongs to the NRA's Joe Foss Society, which recognizes members who have donated between $1 million and $4,999,999. The breakdown in the donations pie chart was calculated by assuming that each company's donation fell precisely in the middle of the appropriate range.