Year	US Dollars
1991	670000.01669
1992	15199999.80927
1993	91610000.61035
1994	152720001.2207
1995	101529998.7793
1996	169399993.89648
1997	122480003.35693
1998	108400001.52588
1999	150039993.28613
2000	137250000
2001	190100006.10352
2002	153330001.83105
2003	152070007.32422
2004	112400001.52588
2005	133740005.49316
2006	132839996.33789
2007	135309997.55859
2008	106819999.69482
2009	141009994.50684
2010	69319999.69482
2011	139199996.94824
2012	156919998.16895
2013	154889999.38965
2014	126559997.55859
2015	88769996.64307
2016	54240001.67847
2017	102169998.16894
2018	101199996.94824
2019	94080001.83105
2020	171630004.88281
2021	125290000.91553