Year	US Dollars
1997	92110000.61035
1998	57830001.83105
1999	153160003.66211
2000	183660003.66211
2001	178669998.16895
2002	207009994.50684
2003	156570007.32422
2004	144610000.61035
2005	195899993.89648
2006	249259994.50684
2007	271929992.67578
2008	284519989.01367
2009	243050003.05176
2010	471799987.79297
2011	430619995.11719
2012	464890014.64844
2013	339649993.89648
2014	503779998.7793
2015	339109985.35156
2016	282000000
2017	255070007.32422
2018	258970001.2207
2019	351480010.98633
2020	523960021.97266
2021	562250000