Year	current US$
1990	66154842.3083989
1991	91393392.7941608
1992	89388494.3230762
1993	71286204.5736076
1994	74261610.4136678
1995	70234463.0417488
1996	68105342.2221212
1997	68806693.5981829
1998	65961479.6964643
1999	62420972.1564515
2000	58229160.7481384
2001	56352178.406985
2002	55056131.5322571
2003	56513808.0928072
2004	59956090.2932288
2005	68323411.306631
2006	76659119.0086557
2007	83489700.1621061
2008	96174418.2618801
2009	86319624.9789265
2010	95191969.4314546
2011	106033441.173429
2012	101012207.093015
2013	102863908.253886
2014	86752682.8553798
2015	76323158.9026366
2016	75178059.60332
2017	74414590.1303275
2018	75532145.3652479
2019	76435379.9617227
2020	78676711.7528211
2021	89016659.8037833