Year	constant 2021 international $
1995	11102.970263876317
1996	12204.49994508393
1997	13567.350551107826
1998	14593.81293714286
1999	14716.05237984802
2000	15710.297967173761
2001	16935.792300652767
2002	18356.64103969607
2003	20180.12641631479
2004	22641.853185372405
2005	25089.647492625758
2006	26837.134287838908
2007	29838.390093713224
2008	31776.94038829719
2009	28278.402960286447
2010	28585.931617903014
2011	30080.352973760208
2012	31383.77281473147
2013	33047.59662340294
2014	35072.38478683816
2015	35918.67177811272
2016	37739.22879970622
2017	39890.49893189122
2018	41633.48098745952
2019	43775.767150044725
2020	44353.33324720917
2021	44640.55465785513
2022	42324.85209910869