Year	constant 2015 US$
1995	18270844091.176773
1996	19677976764.626217
1997	19833558595.831726
1998	19815863046.496265
1999	19498008873.590534
2000	18215563732.452087
2001	18308353209.48924
2002	18728344433.139286
2003	17995206554.912167
2004	19174942633.65185
2005	19798382409.262814
2006	21553694704.699512
2007	23811950730.05177
2008	25578183251.371136
2009	25376342978.232918
2010	28198346262.034397
2011	29714808082.83786
2012	29489670311.179985
2013	31984271226.83358
2014	33789753205.906162
2015	34791041670.01658
2016	36358989651.22616
2017	38186057625.09797
2018	39419827189.849556
2019	39428311786.7873
2020	38947253558.95573
2021	40445637237.23149
2022	40647898863.90549
2023	42581023339.29763