Year	constant 2015 US$
1995	22264.722679442966
1996	22515.08687628346
1997	22406.87565877044
1998	23168.300521754612
1999	23650.162833435537
2000	23294.571687341868
2001	23267.182796984205
2002	23160.3988016458
2003	22696.30507494446
2004	23428.650906190585
2005	23847.512685951482
2006	25577.808895957507
2007	26302.412008144966
2008	26168.11047354824
2009	25231.802014934725
2010	25318.259405819088
2011	25638.628030720327
2012	25826.198477054768
2013	25092.098507348146
2014	25245.999629678492
2015	26307.54213039449
2016	25677.071292467488
2017	25870.868291106777
2018	26117.79439647074
2019	26402.849697164293
2020	24889.276926525607
2021	26098.50600101425
2022	26605.550938166307