Year	constant 2015 US$
1960	403582117.7161342
1961	438131976.7842608
1962	570245119.6319419
1963	638188441.9947797
1964	778173191.0612335
1965	899046978.6627048
1966	927490256.6650558
1967	1088878470.901168
1968	926049833.8553829
1969	853582366.6791155
1970	909454540.4473873
1971	902982781.7752365
1972	950760185.2176306
1973	1343447837.6781225
1974	1394816154.299069
1975	1185001331.9464982
1976	1207520617.6202316
1977	1639809752.7465913
1978	1237810071.3142438
1979	1005354237.3290282
1980	1825746017.192152
1981	1745386656.1624475
1982	1271913602.1618757
1983	1485623652.3702166
1984	1462962353.109191
1985	1471442588.6258085
1986	1260329356.987977
1987	1304434696.8011703
1988	1556873860.8376257
1989	1273135280.942931
1990	1271051382.1997056
1991	1498004804.4554515
1992	1660952495.4650662
1993	1501251145.175576
1994	1685774958.1956263
1995	1928040111.0617955
1996	2190318149.966651
1997	2677811713.7126455
1998	2881859670.076272
1999	3442399901.9383316
2000	3279074459.238788
2001	3301940542.8172336
2002	3297406774.3406377
2003	3412453097.7341385
2004	3691938351.394545
2005	4009435405.6385417
2006	4187390780.6545053
2007	4695976426.671236
2008	5173376699.907117
2009	4700754830.565076
2010	5267938798.016792
2011	5873978733.973681
2012	6272661090.432093
2013	6420100000.051233
2014	6618592382.851928
2015	7412939156.467378
2016	7714481591.662858
2017	7969183093.951617
2018	6765968418.735622
2019	6506425638.817577
2020	6513530370.922892
2021	7892477136.708396
2022	8286318215.537521
2023	9020306203.125519