Year	constant 2015 US$
1991	1342.390173575055
1992	965.8993697090427
1993	945.6215708853337
1994	864.6341075416776
1995	734.7848271712239
1996	601.5217003675992
1997	610.4950746906385
1998	654.7959845954998
1999	652.1672036612728
2000	717.8449072745099
2001	748.7483751921529
2002	858.1644846552646
2003	918.1009696994361
2004	1001.3943365904918
2005	1002.0852408560053
2006	1040.6700354139737
2007	1099.169200604427
2008	1180.199541253088
2009	1286.8641656361015
2010	1349.5913601526663
2011	1431.9709187832561
2012	1559.4955158322448
2013	1660.1698872000547
2014	1708.7149131440283
2015	1741.4956074269326
2016	1814.094480674868
2017	1946.692515724638
2018	2093.6143581965366
2019	2246.768014066787
2020	2414.651728463838
2021	2393.719005966482
2022	2232.9776653564536