Year	current US$
1993	265879998.16611415
1994	283749997.15201557
1995	377740003.8987399
1996	348970000.27447915
1997	483590003.0955672
1998	502059994.2281843
1999	522959992.9824471
2000	475289998.72319376
2001	412979997.64792645
2002	491820003.27110285
2003	611350004.2706727
2004	602570006.8026783
2005	638910012.1818489
2006	697459995.5324081
2007	738919993.9072136
2008	1045970008.6154048
2009	1015329992.4600872
2010	971119983.756915
2011	1349060036.392882
2012	935169992.6555163
2013	1179169973.757118
2014	933070023.359731
2015	1215329994.7939827
2016	1073960003.0798473
2017	902359991.641715
2018	789210022.6897753
2019	862950016.6065998
2020	1057509983.5395808
2021	788589990.0738157
2022	834699989.801273