Year	constant 2010 US$
1991	1605.53045367235
1992	1445.98783164598
1993	1541.57230647115
1994	1716.63508027668
1995	1700.77585015201
1996	1716.12608704739
1997	1707.8791480258
1998	1641.220726894
1999	1792.09891143608
2000	1934.77908066527
2001	1785.13545621526
2002	1808.47687387473
2003	1677.51990467045
2004	1742.7572240317
2005	1802.65880541625
2006	1934.67814500425
2007	2163.26589996226
2008	2327.63921512153
2009	2320.02496670131
2010	2345.43172810912
2011	2466.65966116847
2012	2543.73705517014
2013	2593.23905840672
2014	2486.45116890012
2015	2558.97966849815
2016	2553.68629542083
2017	2551.59899639871
2018	2723.35008037763