The economy of Egypt was a highly centralized planned economy focused on import substitution under President Gamal Abdel Nasser. In the 1990s, a series of International Monetary Fund arrangements, coupled with massive external debt relief resulting from Egypt's participation in the Gulf War coalition, helped Egypt improve its macroeconomic performance. Since 2000, the pace of structural reforms, including fiscal, monetary policies, taxation, privatization and new business legislations, helped Egypt move towards a more market-oriented economy and prompted increased foreign investment. The reforms and policies have strengthened macroeconomic annual growth results which averaged 8% annually between 2004 and 2009 but the government largely failed to equitably share the wealth and the benefits of growth have failed to trickle down to improve economic conditions for the broader population, especially with the growing problem of unemployment and underemployment. After the 2011 revolution Egypt's foreign exchange reserves fell from $36 billion in December 2010 to only $16.3 billion in January 2012, also in February 2012 Standard & Poor's rating agency lowered the Egypt's credit rating from B+ to B in the long term.[12] In 2013, S&P lowered Egypt's long-term credit rating from B- to CCC+, and its short-term rating from B to C on worries about the country's ability to meet its financial targets and maintain social peace more than two years after President Hosni Mubarak was overthrown in an uprising, ushering in a new era.