Year	constant 2015 US$
1960	203297646.30314818
1961	216193392.80357236
1962	230606288.1358242
1963	244260590.45206147
1964	260949209.04705074
1965	276120678.7902182
1966	293637827.38068897
1967	311034576.4728943
1968	343901775.91048694
1969	395911433.272244
1970	463692530.3925128
1971	583423075.832853
1972	737224722.5579811
1973	894277062.3808917
1974	972953726.9939114
1975	1055131834.8702329
1976	1167475696.091516
1977	1307713344.7353923
1978	1495145303.783649
1979	1676784360.5104783
1980	1877778848.2570097
1981	2047996824.3547297
1982	2297146530.4144187
1983	2599146160.6600103
1984	2821253171.4300056
1985	3022275113.0455275
1986	3269283371.136036
1987	3657737271.8997808
1988	4369166055.987796
1989	4939753185.1196995
1990	5274313873.086815
1991	5667709608.200798
1992	5833040675.496278
1993	5944807979.218222
1994	6160480628.085598
1995	6593587689.50958
1996	6977980665.5423355
1997	7558959721.659627
1998	7592496073.430735
1999	8326480944.196966
2000	8491986059.025715
2001	8513264763.900862
2002	9029979997.342587
2003	9447697367.928953
2004	9703335214.038122
2005	10145481816.287102
2006	10994036837.147158
2007	11630872553.112648
2008	12009117014.188185
2009	10310519328.350323
2010	11354171655.914991
2011	12130630062.247677
2012	12109898723.101776
2013	13454439438.019258
2014	14220639811.991568
2015	13530748844.504961
2016	14505561464.355886
2017	15102373014.420195
2018	15734874525.098438
2019	16211987795.535988
2020	14796883501.255041
2021	16560766198.02759
2022	17469294498.13942
2023	17946366788.711197