Moreover, Cuba's health service was remarkably developed. By the late 1950s, it had one of the highest numbers of doctors per capita more than in the United Kingdom at that time and the third-lowest adult mortality rate in the world. According to the World Health Organization, the island had the lowest infant mortality rate in Latin America, and the 13th-lowest in the world better than in contemporary France, Belgium, West Germany, Israel, Japan, Austria, Italy, Spain, and Portugal. Additionally, Cuba's education spending in the 1950s was the highest in Latin America, relative to GDP. Cuba had the fourth-highest literacy rate in the region, at almost 80% according to the United Nations higher than that of Spain at the time.