Year	current US$
1995	1888559565.066233
1996	1872943968.8835607
1997	1918346681.30378
1998	2151605232.6315103
1999	2385566835.1851115
2000	2594767887.199753
2001	2694162488.3184557
2002	2853158983.5049577
2003	3438796074.7091074
2004	4134480918.0573378
2005	5468352570.567043
2006	7606261772.822214
2007	9072946073.00802
2008	9825454196.779951
2009	7943147687.201265
2010	7969957280.735756
2011	8938267497.626202
2012	13008758735.210766
2013	14360676966.570772
2014	16948537169.1251
2015	19699110932.004456
2016	19351500504.481277
2017	20942934832.718006
2018	20522716765.6799
2019	20705848881.071415