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Historical Values
Year Value
1990 undetermined
1991 undetermined
1992 undetermined
1997 NA
1998 NA
1999 NA
2000 NA
2001 NA
2002 NA
2003 NA
2004 NA
2005 NA
2006 NA
2007 NA
2008 NA
2009 NA
2010 NA
2011 NA
2012 NA
2013 NA
2014 NA
2015 NA
2016 about four times the size of the National Mall in Washington, DC
2017 about four times the size of the National Mall in Washington, DC
2018 about four times the size of the National Mall in Washington, DC
2019 about four times the size of the National Mall in Washington, DC
2020 about four times the size of the National Mall in Washington, DC
2021 about four times the size of the National Mall in Washington, DC
2022 about four times the size of the National Mall in Washington, DC
2023 about four times the size of the National Mall in Washington, DC
2024 about four times the size of the National Mall in Washington, DC
2025 about four times the size of the National Mall in Washington, D.C.