Year	current US$
1989	27635041993.0824
1990	23419022398.2051
1991	12061562780.8548
1992	3579200716.98276
1993	9349226886.31904
1994	15808601819.1845
1995	15064156843.669
1996	19229488154.2701
1997	23683671310.7355
1998	20614129134.3757
1999	16592465828.3766
2000	18622054093.0935
2001	15837935645.4078
2002	21107716717.9319
2003	22887299549.5921
2004	31881715945.2615
2005	31922026348.1347
2006	39855592466.2895
2007	43989947556.514
2008	58789457875.5576
2009	69252958502.5194
2010	67040544322.8174
2011	105164379247.748
2012	124725723248.889
2013	113395004840.135
2014	87921233026.23
2015	60099721807.1631
2016	36934175522.7298
2017	56378008373.978
2018	63379349369.3893
2019	65474012388.6478
2020	83829982353.2147
2021	134411783153.877