On 10 September 2002, Switzerland became a full member of the United Nations, after a referendum supporting full membership won in a close vote six months earlier; Swiss voters had rejected membership by a 3-to-1 margin in 1986. The 2002 vote made Switzerland the first country to join based on a popular vote. Conversely, on May 17, 1992, Swiss voters approved by a healthy margin (55 percent in favor) the decision to join the IMF and the World Bank.