Year	current US$
1992	16000000
1993	62000000
1994	86000000
1995	60000000
1996	88000000
1997	22000000
1998	35200000.762939505
1999	47900001.5258789
2000	103059997.558594
2001	77949996.9482422
2002	114300003.05175799
2003	74190002.44140631
2004	73139999.3896484
2005	53259998.3215332
2006	64879997.253418
2007	79919998.1689453
2008	93790000.9155273
2009	78449996.9482422
2010	91000000
2011	106470001.22070299
2012	35950000.762939505
2013	40479999.5422363
2014	30479999.5422363
2015	24979999.5422363
2016	24750000
2017	25219999.3133545
2018	26120000.8392334
2019	26069999.6948242
2020	30670000.0762939
2021	37700000.762939505
2022	32470001.220703095