Year	constant 2010 US$
1991	1786.91066901047
1992	1866.81040157527
1993	2006.20463727174
1994	1590.75226992452
1995	1982.49599157416
1996	2112.16932375116
1997	1592.43286970734
1998	1576.8698074162
1999	1653.80615103363
2000	1589.99436535222
2001	1573.03887131167
2002	1510.04277169614
2003	1540.1784299936
2004	1446.91744702506
2005	1527.06511472164
2006	1509.78902851497
2007	1631.60090315471
2008	1705.68508985102
2009	1722.30623925518
2010	1768.43437201679
2011	1680.28095610313
2012	1779.34964555813
2013	1715.09241410959
2014	1731.74288056794
2015	1806.92375897174
2016	1777.00563951434
2017	1809.79895966477
2018	1868.84866057055