Year	current US$
1990	848231.929343448
1991	896647.745638217
1992	803756.467198378
1993	841321.410027685
1994	878621.148602576
1995	1070099.88576248
1996	1432557.21205526
1997	1490049.04244738
1998	1369531.98981027
1999	1597590.67566787
2000	1670545.01321937
2001	1746615.68242042
2002	1612220.91853229
2003	1891159.53432677
2004	1544370.51757934
2005	1628637.24329778
2006	1716665.22550736
2007	2832857.27916179
2008	2683774.00794683
2009	3590271.87631049
2010	3715171.40096727
2011	3877690.17630437
2012	3728405.74149583
2013	3555792.44622248
2014	5387320.99269108
2015	4868194.6742307
2016	6464080.02788724
2017	6360905.8464432
2018	8227536.3281824
2019	8563573.09561245
2020	8716289.25001457
2021	9716335.0733908