The IRS released tables of various enforcement results from prior years through FY 2010. A total of 1,581,394 individual income tax returns were audited during FY 2010, which works out to a coverage rate of 1.11%, compared to 1,425,888 returns audited during FY 2009 with a 1.03% coverage rate. Close to 80% of the audits in FY 2010 were correspondence audits. The audit coverage rates for other entities for FY 2010 were as follows: .94% for corporations with less than $10 million of assets, 14.16% for corporations with $10 million or more of assets, .36% for partnerships, .37% for S corporations, and 1.47% for tax-exempt organizations.