Year	US Dollars
1992	0.62484
1993	0.6105
1994	12038.75965
1995	8270.09166
1996	3554.02664
1997	2097.61169
1998	4727.35003
1999	1488.1321
2000	1983.67642
2001	1728.86821
2002	1584.80676
2003	1299.29577
2004	993.62037
2005	1193.5858
2006	1905.80557
2007	1157.18268
2008	2213.90435
2009	1854.88145
2010	1551.24057
2011	1344.29827
2012	861.47331
2013	1989.32874
2014	1319.39759
2015	782.84817
2016	999.10189
2017	1241.80073
2018	4732.4228
2019	1392.61
2020	3685.73324
2021	2802.37452