Year	US Dollars
1991	300000.01192
1992	9670000.07629
1993	33860000.61035
1994	215899993.89648
1995	150289993.28613
1996	126069999.69482
1997	253839996.33789
1998	166940002.44141
1999	236860000.61035
2000	190710006.71387
2001	303940002.44141
2002	462519989.01367
2003	372119995.11719
2004	205080001.83105
2005	234570007.32422
2006	219600006.10352
2007	213389999.38965
2008	212360000.61035
2009	212500000
2010	154770004.27246
2011	250520004.27246
2012	247009994.50684
2013	-74419998.16895
2014	201149993.89648
2015	73800003.05176
2016	78790000.91553
2017	126370002.74658
2018	86889999.38965
2019	122290000.91553
2020	122739997.86377
2021	1320000.05245