Commercial and Industrial (C&I) loans are extensions of credit for commercial and industrial purposes to sole proprietorships, partnerships, corporations, and other business enterprises, whether secured (other than by real estate) or unsecured, single-payment or installment. C&I loans comprised about 22 percent of loans and leases in December 2008.

See even more long-term Commercial and Industrial Loans at All Commercial Banks charts and historical data from FRED (Federal Reserve Economic Data), the St. Louis Fed Research Department's database of more than 20,000 U.S. economic time series.