From FY 1970 through FY 1988, United States commitments, including United States Export-Import Bank funds, totaled US$285 million. In the 1980s, bilateral United States economic assistance channelled through the Agency for International Development averaged US$15 million annually. The United States also contributed to various international institutions and private voluntary organizations that serviced Nepal for a total contribution to multilateral aid in excess of US$250 million in the 1980s. Other Western countries and official development assistance and bilateral commitments for the 1980-87 period totaled US$1.8 billion. The Organization of Petroleum Exporting Countries (OPEC) provided US$30 million in bilateral aid from 1979 to 1989. Communist countries provided US$273 million in aid from 1970 to 1988. From 1981 until 1988, Japan was the premier source of bilateral ODA for Nepal, accounting for more than one-third of all funds. The second biggest donor during that period was the Federal Republic of Germany (West Germany).