Year	current US$
1995	2763135593.220339
1996	3873147113.594041
1997	4316103715.9819355
1998	3217470191.809228
1999	3570998585.087682
2000	1173709232.354799
2001	1899075614.7548947
2002	1672224266.7896512
2003	1817802776.3981843
2004	2230028742.0308523
2005	1865679964.2652643
2006	2214485492.763509
2007	2641648489.825246
2008	3885723258.5892844
2009	3252400836.9265733
2010	2761113305.3471746
2011	3667342575.1431136
2012	2786802359.352213
2013	3588053626.808237
2014	3325360282.66538
2015	2662441926.479687
2016	2771638740.324332
2017	2656997545.9092226
2018	3212027542.7794785
2019	3067372501.4598165
2020	3384588580.209325
2021	3971068557.3058906
2022	4106128750.8591876
2023	3935736208.4698043