Year	constant 2010 US$
1991	2220.18999011206
1992	2223.47348312242
1993	2102.50212141765
1994	2038.61797712452
1995	2052.00237191163
1996	2016.11118754338
1997	2089.3241176996
1998	2109.29207443975
1999	2108.72354556356
2000	2063.2936103025
2001	2096.6734216533
2002	2048.14510768456
2003	2087.57571142733
2004	2145.18463839387
2005	2188.1547946929
2006	2229.26869116352
2007	2356.36066082568
2008	2465.53839782859
2009	2513.8154571852
2010	2534.74363862062
2011	2537.72265553003
2012	2562.15458483811
2013	2631.40920865339
2014	2657.38138531877
2015	2672.70524877072
2016	2700.35825748631
2017	2683.31700935173