Year	Measure
1960	3075.55031
1961	3225.99403
1962	3278.00618
1963	3351.45279
1964	3454.51932
1965	3586.28881
1966	3653.42898
1967	3749.63387
1968	3852.19211
1969	4022.72542
1970	4306.50861
1971	4615.34822
1972	4776.26739
1973	5010.18891
1974	5027.11938
1975	4878.81297
1976	5082.90038
1977	5324.95995
1978	5520.44673
1979	5779.13737
1980	5992.33346
1981	6119.6958
1982	6189.34243
1983	6330.49338
1984	6601.03867
1985	6854.32738
1986	6994.48534
1987	7163.21477
1988	7203.88583
1989	7369.28667
1990	7445.29202
1991	7538.40674
1992	7430.29751
1993	7235.09408
1994	7155.48568
1995	7283.38016
1996	7393.53917
1997	7341.61237
1998	7481.43355
1999	7646.70616
2000	7845.63455
2001	7992.27758
2002	8031.43223
2003	8195.12083
2004	8205.82912
2005	8305.3711
2006	8360.57614
2007	8163.29558
2008	8305.92304
2009	8021.2236
2010	8174.40816
2011	7928.19067
2012	7886.09431
2013	7807.05882
2014	7520.16602