Year	current US$
1997	1485028539759.7454
1998	1532696027660.0503
1999	1604792719508.6248
2000	1676289683977.183
2001	1591509724490.5134
2002	1589832369361.4182
2003	1656961693741.4438
2004	1756339094659.825
2005	1849875104010.7136
2006	1960809119668.1367
2007	2023215196556.1182
2008	1969246579489.286
2009	1832115304989.8196
2010	1953972779981.1528
2011	2042315220701.0815
2012	2110568133392.9487
2013	2164273577680.3984
2014	2215858725042.8213
2015	2278545749357.5547
2016	2250000673162.328
2017	2352682864266.8877
2018	2500363947294.137
2019	2526514651929.437
2020	2387822404966.1797
2021	2663668471528.419