Year	current US$
1994	13000000
1995	11000000
1996	9000000
1997	2000000
1998	5869999.88555908
1999	12489999.7711182
2000	18889999.3896484
2001	30909999.8474121
2002	61529998.779296905
2003	49270000.4577637
2004	47580001.8310547
2005	42799999.237060495
2006	56540000.9155273
2007	48979999.5422363
2008	41950000.762939505
2009	40430000.3051758
2010	36959999.0844727
2011	30030000.6866455
2012	31649999.6185303
2013	33130001.068115197
2014	15300000.1907349
2015	13399999.6185303
2016	11460000.038146999
2017	14090000.1525879
2018	12729999.5422363
2019	12840000.1525879
2020	12140000.3433228
2021	13250000
2022	12149999.6185303