Year	current US$
1990	2299.044329450204
1991	2424.9076736443817
1992	1207.542898161238
1993	1343.315288576666
1994	1795.5531163756277
1995	2372.543713112749
1996	2327.7307869353276
1997	1959.560737821876
1998	1875.8166273598836
1999	1915.3928106099581
2000	1861.8989978064396
2001	1823.0226768263633
2002	1989.1353726515904
2003	2445.3628640001334
2004	2818.5814561241964
2005	3120.9840139423313
2006	3440.441105796795
2007	4204.113287604519
2008	5026.4202989872965
2009	4799.78722768888
2010	4833.365867599679
2011	5416.866729316594
2012	5049.826538615697
2013	5626.261156648935
2014	5925.385922180148
2015	5262.686719286744
2016	5598.486226179673
2017	5955.297386345096
2018	6713.9892539898865
2019	6718.858266354576
2020	6659.596510707756
2021	7620.802969775082
2022	7485.603457941804
2023	8146.467975477488