(53.6 °F) and 22 °C (71.6 °F). It snows in the mountain ranges. Characteristics The region is highly urbanized (82%) and many cities are famous for their urban planning, like Curitiba and Maringá, both in Paraná State. It has a relatively high standard of living, with the highest Human Development Index of Brazil, 0.859 (2007), and the second highest per capita income of the country, $13,396, behind only the Southeast Region. The region also has a 98.3% literacy rate. Languages Portuguese, the official language of Brazil, is spoken by the entire population. In the south countryside, dialects of German or Italian origins are also spoken. The predominant dialects are Hunsrückisch and Venetian (or Talian). In Rio Grande do Sul and Curitiba there are some Yiddish speakers. In the northern region of Paraná there are some Japanese speakers. In the region around Ponta Grossa there are also some Dutch speakers. There are Polish language and Ukrainian language speakers in Paraná as well. Indigenous languages still spoken in some villages include Guarani and Kaingang. Economy Agriculture The main agricultural products grown are: soy (35% of the country's production, which is the world's largest producer); maize (35% of the country's production, which is the 3rd world producer); tobacco (almost all the production of the country, which is the second largest producer in the world and the largest exporter); rice (80% of the country's production, which is the ninth largest producer in the world); grape (almost all the production of the country, which is the eleventh largest producer in the world); apple (almost all the production of the country, which is the thirteenth world producer); wheat (almost all the country's production); oat (almost all the country's production); sugar cane (8% of the country's production, which is the world's largest producer); cassava (25% of the country's production, which is the fifth largest producer in the world); yerba mate (almost all the production of the country, which is one of the largest producers in the world); bean (26% of the country's production, which is the third largest producer in the world); in addition to producing relevant quantities of: orange (6% of the country's production, which is the world's largest producer); tangerine (30% of the country's production, which is the sixth largest producer in the world); persimmon (20% of the country's production, which is the sixth largest producer in the world); barley, peach, fig and onion (most