Year	constant 2011 international $
1992	1532.8541140442
1993	1753.8330036731
1994	2146.18630619511
1995	2249.59295276696
1996	2407.87463734853
1997	2617.02477006386
1998	2677.70412263535
1999	2648.2393120591
2000	2483.85126399564
2001	2597.74596935892
2002	2548.17618334327
2003	2358.57519788871
2004	2280.98460997416
2005	2265.26681123282
2006	2176.54233820393
2007	2153.43103554454
2008	1895.04777986986
2009	1931.54103655085
2010	1941.19110756594
2011	2083.96553436044