Economy of Brazil compared to only US$2 billion per year last decade, remarkable growth. The agricultural sector, locally called the "agronegócio" (agro-business), has also been remarkably dynamic: for two decades this sector has kept Brazil among the most highly productive countries in areas related to the rural sector. The agricultural sector and the mining sector also supported trade surpluses which allowed for massive currency gains (rebound) and external debt paydown. Due to a downturn in Western economies, Brazil found itself in 2010 trying to halt the appreciation of the real. Data from the Asian Development Bank and the Tax Justice Network show the
Currency relative values of the different currencies. Currencies in this sense are defined by governments, and each type has limited boundaries of acceptance. Other definitions of the term "currency" are discussed in their respective synonymous articles banknote, coin, and money. The latter definition, pertaining to the currency systems of nations, is the topic of this article. Currencies can be classified into two monetary systems: fiat money and commodity money, depending on what guarantees the value (the economy at large vs. the government's physical metal reserves). Some currencies are legal tender in certain political jurisdictions. Others are simply traded for their economic