Da Afghanistan Bank serves as the central bank of the nation. The "Afghani" (AFN) is the national currency, which has an exchange rate of nearly 70 Afghanis to 1 US dollar. There are over 16 different banks operating in the country, including Afghanistan International Bank, Kabul Bank, Azizi Bank, Pashtany Bank, Standard Chartered Bank, and First Micro Finance Bank. Cash is still widely used for most transactions. A new law on private investment provides three to seven-year tax holidays to eligible companies and a four-year exemption from exports tariffs and duties. According to a UN report in 2007, Afghanistan has received over $3.3 billion from its expatriate community in 2006. UN officials familiar with the issue said remittances to Afghanistan could have been more if the banking regulations are more convenient. Additionally, improvements to the business-enabling environment have resulted in more than $1.5 billion in telecom investment and created more than 100,000 jobs since 2003.