The Japanese introduced crops such as jute and black pepper in the 1930s; jute was so successful that it drove a boom in the regional economy. In the 1970s, Japanese farmers introduced cultivation of Hawaiian papaya and melon, for which there is international demand. The third largest ethnic Japanese community in Brazil is in Pará, with about 13,000 inhabitants (surpassed only by settlements in the states of São Paulo and Paraná). They live mainly in the cities of Tomé-Açu, Santa Izabel do Pará, and Castanhal.