Year	current US$
1995	15427418015.4437
1996	17406227562.8576
1997	18702409609.8435
1998	18051671118.8615
1999	17328669456.0739
2000	18309671724.0216
2001	17621877771.9824
2002	13881572301.4189
2003	14358980844.587
2004	15852585512.0001
2005	19606546065.4445
2006	23978720351.0898
2007	26665405992.908
2008	26613152598.8351
2009	25367462172.1561
2010	32009371300.3076
2011	37408718766.6377
2012	33265947154.2195
2013	43635695492.0143
2014	51768048921.2183
2015	50680271929.4471
2016	53191155624.8773
2017	60296287512.4621
2018	62564894588.293
2019	69581259781.0705
2020	76957692601.1857
2021	92399010033.541