Year	current US$
1990	9511567796.61017
1991	7140956521.73913
1992	7095315448.113208
1993	7618349206.349207
1994	8380132093.023256
1995	12587707238.17226
1996	12564736189.8017
1997	11895403661.464586
1998	12591796018.465088
1999	13038988793.67172
2000	11425980413.258717
2001	11594429417.571571
2002	12898081795.511223
2003	16293716302.20988
2004	18523424265.072247
2005	19287467976.619823
2006	20176029356.41701
2007	24431875181.77851
2008	28480414859.499992
2009	27804294373.214436
2010	27074065492.883385
2011	29160684445.65181
2012	26775983924.363678
2013	27159226327.963608
2014	27490568420.745785
2015	23283088067.30155
2016	24173588453.33002
2017	25528997265.483574
2018	28173345605.82194
2019	28536155302.823483
2020	27079043718.655327
2021	31953812282.429718
2022	32420658073.947598
2023	36181199964.382996