Year	current US$
1990	1049282203.20004
1991	1094907877.35145
1992	1213848630.39853
1993	1232695672.08411
1994	1193906824.40659
1995	1521122493.49564
1996	1477143291.34026
1997	1556360285.97565
1998	1349116174.62731
1999	1358119011.42918
2000	1491895795.36601
2001	1395138153.48063
2002	1181664439.08453
2003	1802598122.10912
2004	2358727860.22196
2005	2948308666.04983
2006	2869281637.08286
2007	3045998991.57112
2008	2771448868.73836
2009	2899039605.59401
2010	3348330552.08241
2011	3382387432.86939
2012	3300427854.47054
2013	3272468992.08476
2014	3175709072.0426
2015	2950018703.36218
2016	2748766381.98499
2017	3201495367.22481
2018	3509458795.46732
2019	3144319569.18185
2020	2816719820.9652
2021	3482722072.41606