Year	current US$
1990	1821175074.75432
1991	1874234664.46801
1992	1889342435.75034
1993	1925502152.63115
1994	1403537111.06043
1995	1655804762.38216
1996	1510249180.15104
1997	1366245891.11258
1998	1835773267.04286
1999	1694404190.97683
2000	1627746786.86714
2001	1179923588.95122
2002	1177265434.93678
2003	1346723782.49139
2004	1499500157.41767
2005	1629680466.78248
2006	1644115863.01594
2007	1929972772.36704
2008	2284385339.15842
2009	2166586836.17175
2010	2495768803.14234
2011	2499627824.57654
2012	2507086346.87544
2013	2605877781.42622
2014	2543858083.86137
2015	2323988784.93579
2016	2324690888.88889
2017	2177972554.55124
2018	1974556371.47169
2019	1925062243.32021
2020	1835604849.56444
2021	1917620440.64046