Year	current US$
1990	1332935.88896828
1991	1409017.88600291
1992	2009391.16799595
1993	1963083.2900646
1994	2196552.87150644
1995	2293071.18377675
1996	2387595.35342544
1997	2648976.07546202
1998	3081446.97707311
1999	3195181.35133575
2000	3526706.13901867
2001	4075436.59231432
2002	4635135.32846755
2003	4832963.15001852
2004	5294984.49080521
2005	5118574.14369385
2006	5640471.53354551
2007	6438312.0329816
2008	6709434.9198887
2009	19332233.5600096
2010	6858778.06928936
2011	8351948.41394607
2012	10563816.6148064
2013	7434838.92635088
2014	7744274.2405768
2015	8345476.36232892
2016	8618772.83539247
2017	8980102.07627141
2018	9794686.41078366
2019	10194730.1940237
2020	8663053.2525627
2021	8806064.01870651