Year	current US$
1990	1686769779.4944
1991	1841970654.61108
1992	2006711979.77195
1993	2181546416.20179
1994	2252491751.3008
1995	2570532797.01373
1996	2950112818.69247
1997	3202446514.22886
1998	3315808138.82939
1999	3419731596.30462
2000	4016732676.22969
2001	3838090927.9143
2002	4193991297.99022
2003	4605183488.88075
2004	4955223231.39484
2005	5467567864.93593
2006	6402670458.80561
2007	7441916144.11984
2008	7707530524.09317
2009	7949138029.64368
2010	8490881238.52008
2011	9477075174.91657
2012	10218317715.6327
2013	10284968513.556
2014	11469607143.029
2015	12225775288.5556
2016	13452108987.5397
2017	15561768675.7955
2018	16131065374.0784
2019	16182706771.4486
2020	16802706542.0318
2021	19657226516.367