Year	constant 2015 US$
1990	36237.67746460092
1991	36465.91427315886
1992	37544.21637035934
1993	37577.785425851995
1994	39441.95582701568
1995	40675.39621761299
1996	41729.18608061631
1997	43005.78016073776
1998	43869.89861908081
1999	45079.12691202568
2000	46307.848501630506
2001	46852.470045364644
2002	47135.486600362165
2003	47418.88584168275
2004	49223.55700318076
2005	51055.46476097905
2006	52932.85156043073
2007	52643.12145914879
2008	52893.28126003349
2009	49806.87468983629
2010	51596.30271257866
2011	51840.73695542317
2012	52003.00455976449
2013	53004.870693440316
2014	54194.89464533621
2015	54889.614212575754
2016	55673.382359059244
2017	56774.37829482327
2018	57758.67919979251
2019	58477.853783662555
2020	57995.05130535758
2021	62534.20649607445
2022	64538.12257499994