Year	constant 2015 US$
1991	77417.11622939887
1992	79313.87997606376
1993	79195.59233529221
1994	81281.34363304188
1995	83841.27962621633
1996	83969.68092458778
1997	84457.93093449553
1998	85664.72752900216
1999	85267.56639598552
2000	86772.94802981536
2001	87275.61922232427
2002	85606.99925265186
2003	84454.56289758047
2004	81193.8527664364
2005	82298.30009122651
2006	81894.72366162324
2007	82367.23257557825
2008	81006.03897758074
2009	80208.39905787482
2010	81304.66374507322
2011	81484.72792814964
2012	79301.83888675
2013	78506.6283872852
2014	78264.67885361848
2015	78137.64063189394
2016	77493.60159309066
2017	77357.70925430505
2018	77205.37883871714
2019	77735.07149270315
2020	73821.6979788185
2021	79116.07800566463
2022	80712.55512760856