Year	constant 2010 US$
1991	1601.08315866273
1992	1614.58142674752
1993	1611.87817847699
1994	1741.57510755396
1995	1845.25872184734
1996	1938.95487331355
1997	1856.09895316509
1998	1783.93558662207
1999	1830.76857420261
2000	1976.14151012927
2001	1974.7948067352
2002	1923.98837000913
2003	1916.72470938488
2004	1962.82449233422
2005	2076.38751642962
2006	2051.64611185718
2007	2180.47010337454
2008	2302.785095156
2009	2263.70995620548
2010	2169.72002299099
2011	2105.95870195304
2012	1947.66583971643
2013	1877.85765239429
2014	1873.73494040763
2015	1824.25445604801
2016	1874.32742949954
2017	1995.34237840708
2018	1978.15750825978