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Historical Values
Year Value
1993 20 km2 (1989 est.)
1994 20 sq km (1989 est.)
1995 20 sq km (1989 est.)
1996 20 sq km (1989 est.)
1997 20 sq km (1993 est.)
1998 20 sq km (1993 est.)
1999 20 sq km (1993 est.)
2000 20 sq km (1993 est.)
2001 20 sq km (1993 est.)
2002 10 sq km (1998 est.)
2003 10 sq km (1998 est.)
2004 10 sq km (1998 est.)
2005 10 sq km (1998 est.)
2006 10 sq km (2003)
2007 10 sq km (2003)
2008 10 sq km (2003)
2009 10 sq km (2003)
2010 10 sq km (2003)
2011 20 sq km (2008)
2012 20 sq km (2003)
2013 14.39 sq km (2003)
2014 14.39 sq km (2003)
2015 14.39 sq km (2003)
2016 20 sq km (2012)
2017 20 sq km (2012)
2018 20 sq km (2012)
2019 20 sq km (2012)
2020 20 sq km (2012)
2021 20 sq km (2012)
2022 25 sq km (2014)
2023 25 sq km (2014)
2024 25 sq km (2014)
2025 25 sq km (2014)