Year	constant 2015 US$
1994	12626.661370184574
1995	12474.019228087023
1996	13564.48151595235
1997	14573.985673114186
1998	14797.952858847064
1999	15746.727037179402
2000	16481.189529801224
2001	16639.5690859802
2002	17370.15042890734
2003	16670.22186344036
2004	18597.167319117754
2005	18350.28719473352
2006	18945.45957848926
2007	19520.161029558592
2008	21991.55656527571
2009	22374.91809230939
2010	22124.42596304602
2011	23622.87423516669
2012	23303.389076109997
2013	24503.05656272945
2014	26027.80159265412
2015	32687.628245474945
2016	25303.807478047358
2017	26061.979276624254
2018	25787.317331112128
2019	26142.182955834283
2020	26033.335813251157
2021	26488.672502729634
2022	32310.990783866517