Year	constant 2015 US$
1991	2674115912.580494
1992	2690160645.9448924
1993	2679400041.250028
1994	2724949850.659618
1995	2831222910.571465
1996	3023745960.9346943
1997	3311001840.9735
1998	3658657082.4007506
1999	4068426769.7408113
2000	4206753240.8008604
2001	4450744868.5728245
2002	4704437280.859221
2003	4991408077.366719
2004	5260944014.544454
2005	5560817820.012374
2006	5977879137.416067
2007	6438175832.066549
2008	6058323568.280255
2009	6058323568.280255
2010	6161314959.246499
2011	6315347913.43605
2012	6618437816.630147
2013	6957590042.93685
2014	7063071660.794811
2015	6826496268.400186
2016	6757321950.571754
2017	7106398345.436875
2018	7560818050.58352
2019	7606409669.531674
2020	7123631971.00699
2021	6516066781.825298