Year	constant 2010 US$
1991	1559.14502381858
1992	1678.06596850949
1993	1571.53180900011
1994	1602.54371883549
1995	1703.91089041541
1996	1835.03998630128
1997	1755.26441698941
1998	1775.98087260208
1999	1750.0658301262
2000	1791.70375562203
2001	1712.84566115568
2002	1675.22827240706
2003	1685.83866048391
2004	1634.22395291645
2005	1687.02302407253
2006	1740.22629427026
2007	1733.55586623538
2008	1673.05100462892
2009	1721.20972889292
2010	1662.26161984409
2011	1646.90205283334
2012	1687.49888067484
2013	1723.86245697269
2014	1705.31919354245
2015	1746.14533728373
2016	1653.19371315649
2017	1654.24627986346
2018	1682.06641437957