Year	constant 2015 US$
1995	1339.3581712000316
1996	1421.4048766806263
1997	1465.8079927608112
1998	1479.7583181269729
1999	1515.701016588247
2000	1608.0528504447414
2001	1670.386600680307
2002	1754.152353055543
2003	1818.239890578819
2004	1941.4039232142836
2005	2077.7554601218753
2006	2238.8920318532423
2007	2455.2143147005777
2008	2624.668612281448
2009	2675.8345615782696
2010	2841.8557445363185
2011	3085.2722023241913
2012	3259.505158983402
2013	3427.914650822813
2014	3605.4894560222037
2015	3699.7903554217173
2016	3847.4577832934215
2017	4085.0434158501616
2018	4320.82741584542
2019	4523.901397840687
2020	4350.896617977525
2021	4790.493497086513
2022	4946.934248165995