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Historical Values
Year Value
1990 15% (1986)
1991 9% (1987)
1992 9% (1987)
1993 9% (1987)
1994 9% (1987)
1995 9% (1987)
1996 9% (1987)
1997 NA%
1998 NA%
1999 NA%
2000 NA%
2001 NA%
2002 NA%
2003 NA%
2004 NA
2005 NA
2006 NA%
2007 NA%
2008 2% (2006 est.)
2009 2% (2006 est.) country comparison to the world: 19
2010 2% (2006 est.) country comparison to the world: 13
2011 2% (2006 est.) country comparison to the world: 13
2012 2% (2006 est.) country comparison to the world: 13
2013 2% (2006 est.) country comparison to the world: 14
2014 2% (2006 est.) country comparison to the world: 14
2015 3% (2014 est.) | 3.3% (2013 est.) | country comparison to the world: 21
2016 3% (2014 est.) | 3.3% (2013 est.) | country comparison to the world: 21
2017 2.7% (2016 est.) | 3.3% (2013 est.) | country comparison to the world: 30
2018 3% (2017 est.) | 2.7% (2016 est.)
2019 3% (2017 est.) | 2.7% (2016 est.)
2020 3% (2017 est.) | 2.7% (2016 est.)
2021 3% (2017 est.) 2.7% (2016 est.)
2022 3% (2017 est.) 2.7% (2016 est.)
2023 3% (2017 est.) 2.7% (2016 est.)
2024 3% (2017 est.) 2.7% (2016 est.)