Year	constant 2015 US$
1995	4698411993531.393
1996	4974788854413.117
1997	5213848033110.125
1998	5364225382461.852
1999	5545649932292.041
2000	5849730286508.356
2001	6031828493561.172
2002	6246225895995.184
2003	6519497524165.526
2004	6906940906648.448
2005	7373243654684.19
2006	7856358540096.396
2007	8472255419331.477
2008	8919150505797.107
2009	9218517386888.492
2010	9918277767393.07
2011	10720902769915.447
2012	11340481530907.697
2013	11987256365380.434
2014	12585362868634.129
2015	13185331492659.832
2016	13837871169838.525
2017	14641197804063.12
2018	15405509793940.62
2019	16076506741152.18
2020	15511639933753.746
2021	16983866423502.44
2022	17827090123803.785