Year	constant 2015 US$
1995	7786255240.848436
1996	8215845317.943748
1997	8661990436.880077
1998	8746039366.883593
1999	9038209615.397654
2000	9230833257.851952
2001	9703772003.58398
2002	10300869679.828512
2003	11132515052.612495
2004	12271082757.304293
2005	13543692933.338276
2006	16040139098.734367
2007	17850540158.470303
2008	16375560378.750774
2009	13804405162.864447
2010	14095653406.166399
2011	14086025053.301556
2012	14879522044.367178
2013	15846890800.522648
2014	15962537548.138273
2015	16320855845.678507
2016	16890906926.188272
2017	17385311417.815224
2018	17912195789.80233
2019	17916035813.916782
2020	17142171653.450768
2021	18390913988.18163
2022	19717101432.191
2023	19238230314.61937