Year	constant 2015 US$
1995	1680.8780466786748
1996	1756.2670106562823
1997	1830.2302026637522
1998	1879.1891888741532
1999	1925.6938135947348
2000	1998.1686098434739
2001	2050.3366449065084
2002	2114.945210112668
2003	2219.0013401907645
2004	2351.6557244660953
2005	2490.5408033082454
2006	2685.605244499132
2007	2909.839759625932
2008	3057.3358086842327
2009	3142.074464175456
2010	3349.066200439758
2011	3580.5010774151565
2012	3730.348328551154
2013	3874.5949121903705
2014	4038.6259245578312
2015	4164.484162897637
2016	4315.574550785949
2017	4498.157086950273
2018	4654.553701317736
2019	4794.252245873992
2020	4675.373546075872
2021	4973.332671663751
2022	5116.771066517468