Year	constant 2015 US$
1990	621.2576822488594
1991	575.8121489233134
1992	595.4809452083462
1993	635.1139319994671
1994	717.7792662858294
1995	711.4423459585862
1996	740.51111940267
1997	822.3492011588305
1998	788.5303334165218
1999	800.4513095271668
2000	1011.7691308278454
2001	1080.3104027257364
2002	1159.4412555433285
2003	1198.5420948540454
2004	1236.2739618728176
2005	1308.347702541462
2006	1345.3088385191775
2007	1504.9219564886637
2008	1544.3087883189637
2009	1622.0093816849376
2010	1740.157339984464
2011	1841.2377556226936
2012	1892.5388281977378
2013	1929.6500481612113
2014	2064.1275675645575
2015	2186.759004317896
2016	2278.2178312181104
2017	2396.402160699387
2018	2463.6874889860756
2019	2703.66581298037
2020	2562.996410637396
2021	2556.474831399201