Year	constant 2015 US$
1990	769.4957884847328
1991	757.8726678690514
1992	737.423965335354
1993	735.0456986524151
1994	738.5036691416432
1995	763.2467774009473
1996	772.35418509504
1997	779.7808898775774
1998	790.4089722151381
1999	789.2843899541066
2000	786.7828291811743
2001	795.9854377961649
2002	798.0865322881946
2003	811.6164692578004
2004	838.7475674107526
2005	867.7751609222939
2006	913.6082078469657
2007	938.755596932178
2008	931.9261908370928
2009	921.9956838686883
2010	949.7491638634255
2011	945.8089182393815
2012	961.1804885906973
2013	974.6028534625423
2014	985.7934976751403
2015	1005.6813886733075
2016	1002.279489888529
2017	1003.3393668914413
2018	1003.2912707206818
2019	1001.375268157585
2020	946.4428825197875
2021	969.5865255939677
2022	978.0115120059959
2023	975.093377361103