Year	constant 2010 US$
1980	3179.94850199278
1981	2491.68696491491
1982	2390.28502993974
1983	2294.94051856254
1984	2247.38963704403
1985	1978.43089143794
1986	2108.61869664892
1987	2444.96888932465
1988	2681.12981401112
1989	2845.06770096377
1990	3179.88822657655
1991	3288.99098243669
1992	3500.66440303206
1993	3611.52260542715
1994	3627.92910178456
1995	3670.50613095815
1996	3536.63026526719
1997	3456.24781441662
1998	3442.39582573203
1999	3478.95594914994
2000	3375.36192223021
2001	3360.29649343755
2002	3466.85584579423
2003	3444.42377113275
2004	3372.19759826193
2005	3388.32753533876
2006	3325.64313246448
2007	3191.3369324203
2008	3011.42643204377
2009	3173.93808985784
2010	3022.69845201245
2011	3147.92727123552
2012	3247.81997973002
2013	3304.53928190874
2014	3370.20701374161
2015	3721.67010649533
2016	3602.73405573519
2017	3527.21149622352