Year	constant 2010 US$
1991	807.265818001774
1992	691.903327074252
1993	735.354087813649
1994	802.947951883132
1995	752.204998909823
1996	755.627326780853
1997	738.465446796529
1998	808.338089375195
1999	857.408072166816
2000	747.607646896634
2001	828.294627353673
2002	781.383813524908
2003	887.092059343542
2004	843.26320831067
2005	890.152896076997
2006	912.421510052201
2007	922.803784764846
2008	979.266521686669
2009	971.139697267811
2010	1027.19770716152
2011	973.693358376123
2012	1014.89733638994
2013	971.267522193848
2014	1021.19601947106
2015	1155.51375341156
2016	1162.34597096711
2017	1180.57422641602
2018	1217.9586240226