Year	current US$
1990	10013374944.271065
1991	6212855085.744207
1992	9093750000
1993	7377804091.836063
1994	8109347527.928995
1995	11476530531.948378
1996	12678235484.917288
1997	12454205810.874533
1998	12852117833.426098
1999	11257601331.521101
2000	10033341440.67453
2001	12046885167.264894
2002	13680172970.06876
2003	18478846580.745163
2004	26152717641.5904
2005	34287061637.058357
2006	45041888825.95587
2007	67730544447.8622
2008	83625436606.58919
2009	56494830823.21497
2010	64882249284.11844
2011	78729275787.50694
2012	73064211983.1613
2013	78106395081.36772
2014	83680518336.60529
2015	75016620203.32693
2016	80557368317.7132
2017	94191820736.47523
2018	109319271760.80273
2019	111208079425.66232
2020	103517490136.64493
2021	132221890257.63524
2022	149308698457.3875
2023	154123428721.3344