Year	current US$
1988	554828660436.137
1989	506631299734.748
1990	517014446227.9294
1991	517962962962.96295
1992	460290556900.7264
1993	435083713850.83716
1994	395077301248.4637
1995	395537185734.8544
1996	391724890744.49817
1997	404928954191.87555
1998	270955486862.44205
1999	195907128350.9342
2000	259710142196.94278
2001	306602070620.5005
2002	345470494417.8628
2003	430347420184.88513
2004	591016690732.3846
2005	764015973481.1102
2006	989932071352.5431
2007	1299703478481.653
2008	1660848058303.1138
2009	1222645900055.6956
2010	1524916715223.946
2011	2045922753398.036
2012	2208293553878.4243
2013	2292470078346.2236
2014	2059241589895.015
2015	1363482182197.7053
2016	1276786350881.137
2017	1574199360089.0022
2018	1657328773461.3062
2019	1693115002708.3157
2020	1493075894362.1426
2021	1843392293734.3777
2022	2266029240645.338
2023	2021421476035.417