Year	constant 2010 US$
1991	3104.02460510899
1992	3055.59606371079
1993	2913.08814120313
1994	2870.07048286088
1995	2893.49022718995
1996	2806.90813879857
1997	2878.8235219993
1998	2896.92485041736
1999	2913.24081684454
2000	2852.19962084618
2001	2919.65744321158
2002	2851.69781477077
2003	2917.15369708289
2004	2995.2724480006
2005	3060.15691348331
2006	3203.15987143327
2007	3327.86460560663
2008	3439.18984636447
2009	3457.86003215186
2010	3507.01883892824
2011	3509.13876719101
2012	3500.683193048
2013	3540.35579163461
2014	3567.46858748742
2015	3566.30520681622
2016	3610.65681501541
2017	3628.25550293528
2018	3796.68634317896