Private nonguaranteed debt service is an external obligation of a private debtor that is not guaranteed for repayment by a public entity. Debt service payments are the sum of principal repayments and interest payments actually made in the year specified. Long-term external debt is defined as debt that has an original or extended maturity of more than one year and that is owed to nonresidents by residents of an economy and repayable in foreign currency, goods, or services. Data are in current U.S. dollars.