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Historical Values
Year Value
2001 less than 0.01% (1999 est.)
2002 less than 0.01% (1999 est.)
2003 less than 0.1% (2001 est.)
2004 less than 0.1% (2001 est.)
2005 less than 0.1% (2001 est.)
2006 less than 0.1% (2001 est.)
2007 less than 0.1% (2001 est.)
2008 less than 0.1% (2001 est.)
2009 less than 0.1% (2007 est.) country comparison to the world: 150
2010 less than 0.1% (2007 est.) country comparison to the world: 159
2011 less than 0.1% (2009 est.) country comparison to the world: 155
2012 less than 0.1% (2009 est.) country comparison to the world: 153
2013 less than 0.1% (2009 est.) country comparison to the world: 130
2014 less than 0.1% (2009 est.) country comparison to the world: 142
2015 0.02% (2014 est.) | country comparison to the world: 129
2016 0.02% (2014 est.) | country comparison to the world: 129
2017 <.1% (2016 est.)
2018 <.1% (2017 est.)
2019 <.1% (2018 est.)
2020 <.1% (2018 est.)
2021 <.1% (2018 est.)
2022 (2021 est.) <0.1%