Year	current US$
1989	8670999697.630148
1990	9793765899.569035
1991	10305563322.192163
1992	11301011697.661821
1993	11105963437.625639
1994	11528813120.944098
1995	13799853114.593672
1996	14887069689.543522
1997	15708860465.29259
1998	16484153765.628216
1999	16295144007.697376
2000	16639426882.821733
2001	16404844806.251858
2002	18514105288.457317
2003	22201502547.139683
2004	26116788789.81179
2005	31509165414.1273
2006	39176899457.305
2007	46633730335.128105
2008	49682124969.37079
2009	36959690015.56705
2010	39301817069.62253
2011	43988971275.288994
2012	47169476835.1551
2013	47972360760.99505
2014	46434569965.413734
2015	43295658106.44034
2016	47077266921.817085
2017	53959434475.64992
2018	59695673816.31518
2019	58933774671.529816
2020	55305265069.52082
2021	60257464045.12831
2022	64284129795.39082
2023	68519572915.04137