Year	constant 2010 US$
1977	5193.18031561836
1978	5431.57800444191
1979	5878.39533077209
1980	6367.09789611897
1981	6616.94960561146
1982	6613.63790913742
1983	6967.49227546542
1984	7675.8617893535
1985	8262.58882135533
1986	9217.05027962495
1987	9833.69790250682
1988	10337.3106613014
1989	10838.6693244457
1990	11072.2397817287
1991	11163.4770113276
1992	11099.4090679873
1993	11453.4512928298
1994	11958.6685601452
1995	11193.1615085077
1996	11676.874363729
1997	12052.7701544948
1998	12360.9929844015
1999	12570.4033013906
2000	13174.8118444779
2001	12328.1564066864
2002	12282.1360274371
2003	12861.0907512852
2004	13423.4933864214
2005	14086.3006892608
2006	15641.3868957467
2007	16820.8127651083
2008	16545.7769491212
2009	14316.3385683291
2010	13092.0738182632
2011	12643.9198441354
2012	12919.9541600759
2013	12750.414275188
2014	13193.5466017604
2015	13577.4128026007
2016	14190.6057596111
2017	14483.2082371683
2018	15061.5863625331