Singapore is the 14th largest exporter and the 15th largest importer in the world. The country has the highest trade-to-GDP ratio in the world at 407.9 percent, signifying the importance of trade to its economy. The country is currently the only Asian country to have AAA credit ratings from all three major credit rating agencies; Standard & Poor’s, Moody’s, and Fitch. Singapore attracts a large amount of foreign direct investment as a result of its location, corruption-free environment, skilled workforce, low tax rates and advanced infrastructure. There are more than 7,000 multinational corporations from the United States, Japan, and Europe in Singapore. There are also 1,500 companies from China and 1,500 from India. Foreign firms are found in almost all sectors of the economy. Singapore is also the second-largest foreign investor in India. Roughly 44 percent of the Singaporean workforce is made up of non-Singaporeans. Over ten free-trade agreements have been signed with other countries and regions. Singapore also possesses the world’s eleventh largest foreign reserves, and has one of the highest net international investment position per capita. The currency of Singapore is the Singapore dollar, issued by the Monetary Authority of Singapore. It is interchangeable with the Brunei dollar. In recent years, the country has been identified as an increasingly popular tax haven for the wealthy due to the low tax rate on personal income, a full tax exemption on income that is generated outside of Singapore and legislation that means that capital gains are also tax exempt.