Year	current US$
1992	159096.004331544
1993	144773.312550904
1994	275430.02695167
1995	247127.604329748
1996	182176.331419553
1997	151037.894220002
1998	141129.280990972
1999	53519.8125669383
2000	232594.926042254
2001	210149.512567717
2002	252810.429073751
2003	271140.937105177
2004	234910.971636274
2005	241664.694531282
2006	336926.082761066
2007	434010.533332259
2008	555070.890532378
2009	440846.02748287
2010	469642.955023972
2011	469122.084326875
2012	357498.846789583
2013	338367.728630018
2014	398956.555905217
2015	121676.308313625
2016	129256.4606526
2017	120749.363922462
2018	219405.786815905
2019	115477.695944357
2020	89964.7522837755
2021	102891.221417977