Year	Measure
1960	2412.1374
1961	2553.69318
1962	2780.65728
1963	3002.0876
1964	3127.46296
1965	3330.18388
1966	3425.80309
1967	3506.88706
1968	3762.59018
1969	4006.33097
1970	4166.9324
1971	4254.65241
1972	4372.63695
1973	4671.7183
1974	4534.25428
1975	4492.42163
1976	4587.68852
1977	4668.42317
1978	4729.84939
1979	4922.91573
1980	4683.93274
1981	4572.95385
1982	4480.33541
1983	4549.17529
1984	4597.73969
1985	4826.71453
1986	4953.65358
1987	5082.43981
1988	5232.73765
1989	5295.22453
1990	5356.57521
1991	5451.67717
1992	5452.39333
1993	5491.98912
1994	5380.26427
1995	5575.80849
1996	5815.8284
1997	5831.95755
1998	5908.87149
1999	6007.48442
2000	6114.52926
2001	6141.98255
2002	6142.74983
2003	6174.5509
2004	6138.75414
2005	6270.98406
2006	6200.55411
2007	6102.39677
2008	6015.72686
2009	5643.12859
2010	5700.85586
2011	5471.92413
2012	5449.2522
2013	5409.63039
2014	5129.52779