Year	constant 2010 US$
1991	1451.26705560969
1992	1456.1933614718
1993	1423.11109353945
1994	1440.1763618955
1995	1467.08017332296
1996	1528.39134599862
1997	1514.2045704117
1998	1554.77932532754
1999	1573.80257426015
2000	1563.7736073217
2001	1563.74270924593
2002	1832.66138454808
2003	1868.67610894406
2004	1916.96795114086
2005	1983.63562380066
2006	2053.87544885342
2007	2111.14884888242
2008	2131.4255066954
2009	2226.85704047262
2010	2277.26096475371
2011	2292.96157666749
2012	2393.45984422017
2013	2461.23740066345
2014	2510.58100692665
2015	2573.85683804604
2016	2585.28679276729
2017	2600.39559221178
2018	2621.30216296415