Year	current US$
1989	51189999.5803833
1990	72419998.1689453
1991	122639999.4269013
1992	189869992.7888813
1993	128590002.7845055
1994	131350001.5363097
1995	117650000.93355769
1996	95590000.72814526
1997	117340002.17169519
1998	83659999.48978427
1999	80000001.71735886
2000	58960001.023486294
2001	62359998.894855395
2002	54649999.48628249
2003	48230001.03607781
2004	52750000.279396795
2005	55960000.142455176
2006	59220000.03047283
2007	65179999.712854646
2008	76620000.7535518
2009	111560001.01193792
2010	170220002.34946606
2011	265910001.6001609
2012	114039997.35973772
2013	93739999.11360449
2014	78649999.71725048
2015	59120000.319555424
2016	53620001.03294853
2017	50469999.728724346
2018	60619999.51675529
2019	62899999.7377396
2020	72349997.76259066
2021	67110000.63084064
2022	65650000.05811447