US electronic goods through Panama. Increasing numbers of Cubans fled to Florida, but were labelled "scum" and "lumpen" by Castro and his CDR supporters. In one incident, 10,000 Cubans stormed the Peruvian Embassy requesting asylum, and so the US agreed that it would accept 3,500 refugees. Castro conceded that those who wanted to leave could do so from Mariel port. In what was known as the Mariel boatlift, hundreds of boats arrived from the US, leading to a mass exodus of 120,000; Castro's government took advantage of the situation by loading criminals, the mentally ill, and homosexuals onto the boats destined for Florida. The event destabilized Carter's administration, and later, in 1980, Ronald Reagan was elected US president. Reagan's administration adopted a hard-line approach against Castro, making its desire to overthrow his regime clear. In late 1981, Castro publicly accused the US of biological warfare against Cuba by orchestrating a dengue fever epidemic. Cuba's economy became even more dependent on Soviet aid, with Soviet subsidies (mainly in the form of supplies of low-cost oil and voluntarily buying Cuban sugar at inflated prices) averaging $4–5 billion a year by the late 1980s. This accounted for 30–38% of the country's entire GDP. Soviet economic assistance had not helped Cuba's long-term growth prospects by promoting diversification or sustainability. Although described as a "relatively highly developed Latin American export economy" in 1959 and the early 1960s, Cuba's basic economic structure changed very little between then and the 1980s. Tobacco products such as cigars and cigarettes were the only manufactured products among Cuba's leading exports, and even these are produced by a pre-industrial process. The Cuban economy remained highly inefficient and over-specialized in a few highly subsidized commodities provided by the Soviet bloc countries. Although despising Argentina's right-wing military junta, Castro supported them in the 1982 Falklands War against Britain and offered military aid to the Argentinians. Castro supported the leftist New Jewel Movement that seized power in Grenada in 1979, befriending Grenadine President Maurice Bishop and sending doctors, teachers, and technicians to aid the country's development. When Bishop was executed in a Soviet-backed coup by hard-line Marxist Bernard Coard in October 1983, Castro condemned the killing but cautiously retained support for Grenada's government. However, the US used the coup as a basis for invading the island. Cuban soldiers died in the conflict, with Castro denouncing the invasion and comparing the US to Nazi Germany.