The interethnic warfare in Bosnia and Herzegovina caused production to plummet by 80% from 1992 to 1995 and unemployment to soar. With an uneasy peace in place, output recovered in 1996-99 at high percentage rates from a low base; but output growth slowed in 2000-02. Part of the lag in output was made up in 2003-08 when GDP growth exceeded 5% per year. However, due in large part to the global economic crisis, GDP fell by about 3% in 2009, exports fell 24%, and unemployment - as officially reported - rose above 40%. Banking reform accelerated in 2001 as all the Communist-era payments bureaus were shut down; foreign banks, primarily from Austria and Italy, now control most of the banking sector. The konvertibilna marka (convertible mark or BAM)- the national currency introduced in 1998 - is pegged to the euro, and confidence in the currency and the banking sector has increased. Bosnia's private sector is growing and foreign investment is slowly increasing, but government spending, at nearly 50% of adjusted GDP, remains high because of redundant government offices at the state, entity and municipal level. Privatization of state enterprises, however, has been slow, particularly in the Federation where political division between ethnically-based political parties makes agreement on economic policy more difficult. A sizeable current account deficit and high unemployment rate remain the two most serious macroeconomic problems. Successful implementation of a value-added tax in 2006 provided a predictable source of revenue for the government and helped rein in gray market activity. National-level statistics have also improved over time but a large share of economic activity remains unofficial and unrecorded. Bosnia and Herzegovina became a full member of the Central European Free Trade Agreement in September 2007. In 2009, Bosnia's economy was hurt by the global financial downturn, with GDP, exports, and employment all showing declines. One of Bosnia's main challenges has been to cut public sector wages and social benefits to meet the IMF's budget deficit criteria and qualify for additional tranches of Fund aid.