Seen here:
"At an estimated $335.17 billion, total charitable giving from U.S. individuals, corporations, foundations and bequests in 2013 approached the peak seen before the worst of the Great Recession, adjusted for inflation, according to research released today by Giving USA Foundation and its research partner, the Indiana University Lilly Family School of Philanthropy. ...
"Donations in 2013 increased 4.4 percent (in current dollars) from the revised estimate of $320.97 billion for 2012. Adjusted for inflation, total giving rose 3.0 percent over the 2012 estimate. ...
"When adjusted for inflation, 2007 donations totaled an estimated $349.50 billion."