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Historical Values
Year Value
1993 10 km2 (1989)
1994 10 sq km (1989)
1995 10 sq km (1989)
1996 10 sq km (1989)
1997 10 sq km (1993 est.)
1998 10 sq km (1993 est.)
1999 10 sq km (1993 est.)
2000 10 sq km (1993 est.)
2001 11.45 sq km (2000 est.)
2002 20 sq km (1998 est.)
2003 20 sq km (1998 est.)
2004 20 sq km (1998 est.)
2005 20 sq km (1998 est.)
2006 20 sq km (2003)
2007 20 sq km (2003)
2008 20 sq km (2003)
2009 20 sq km (2003)
2010 20 sq km (2003)
2011 32 sq km (2008)
2012 32 sq km (2003)
2013 32 sq km (2007)
2014 32 sq km (2007)
2015 32 sq km (2007)
2016 35 sq km (2012)
2017 35 sq km (2012)
2018 35 sq km (2012)
2019 35 sq km (2012)
2020 35 sq km (2012)
2021 35 sq km (2012)
2022 35 sq km (2020)
2023 35 sq km (2020)
2024 35 sq km (2020)
2025 39 sq km (2022)