In 2006 (the most recent year for statistics), 24.7 million individual taxpayers who itemized deductions reported $52.6 billion in deductions for noncash charitable contributions, of which $46.8 billion were sizable enough to require reporting on Form 8283, Noncash Charitable Contributions (a 14.1% increase over the prior year).

Source: Statistics of Income Bulletin, Summer 2009