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Historical Values
Year Value
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: 149
2010 less than 0.1% (2007 est.) country comparison to the world: 146
2011 less than 0.1% (2007 est.) country comparison to the world: 139
2012 less than 0.1% (2007 est.) country comparison to the world: 138
2013 less than 0.1% (2007 est.) country comparison to the world: 146
2014 less than 0.1% (2007 est.) country comparison to the world: 158
2015 0.01% (2013 est.) | country comparison to the world: 131
2016 0.01% (2013 est.) | country comparison to the world: 131
2017 <.1% (2016 est.)
2018 <.1% (201 est.)
2019 <.1% (2018 est.)
2020 <.1% (2018 est.)
2021 <.1% (2018 est.)
2022 NA