Year	US Dollars
1991	4340000.15259
1992	36270000.45776
1993	173190002.44141
1994	288250000
1995	290070007.32422
1996	396750000
1997	230750000
1998	275070007.32422
1999	296299987.79297
2000	314709991.45508
2001	317750000
2002	426630004.88281
2003	325519989.01367
2004	309589996.33789
2005	202869995.11719
2006	245410003.66211
2007	377579986.57227
2008	305489990.23438
2009	405679992.67578
2010	323059997.55859
2011	372079986.57227
2012	267529998.7793
2013	271179992.67578
2014	254869995.11719
2015	374989990.23438
2016	356320007.32422
2017	271320007.32422
2018	140089996.33789
2019	427619995.11719
2020	134309997.55859
2021	152960006.71387