Year	current US$
1997	128695682151.9479
1998	123770451820.6791
1999	125785483597.07372
2000	133528060962.6248
2001	135157163094.64485
2002	121553549495.9584
2003	146835109112.37967
2004	176879799962.53107
2005	172093176892.91013
2006	161924679718.26694
2007	178947390681.31058
2008	183007194136.98114
2009	160353032844.85312
2010	179089394718.8512
2011	218967842072.90253
2012	219947707446.10773
2013	257512785269.31802
2014	234368028979.3945
2015	217357525348.06717
2016	204704341729.54578
2017	215615451151.0368
2018	214944142610.25323
2019	208955187071.463
2020	230310469689.4033
2021	257848237510.49905