Year	Measure
1971	176.23272
1972	201.61347
1973	182.29997
1974	210.75967
1975	236.47394
1976	229.77263
1977	223.5552
1978	288.61317
1979	316.26455
1980	356.52005
1981	414.03455
1982	520.84273
1983	600.47207
1984	589.52406
1985	618.20147
1986	606.49173
1987	590.5367
1988	628.03613
1989	677.04465
1990	688.80622
1991	700.57328
1992	702.35386
1993	687.32566
1994	751.48586
1995	832.38693
1996	893.10366
1997	914.05305
1998	958.1335
1999	1012.91876
2000	1064.90536
2001	1144.1591
2002	1233.32877
2003	1294.20934
2004	1399.19731
2005	1503.33888
2006	1549.61859
2007	1559.58348
2008	1584.9593
2009	1543.00913
2010	1853.43297
2011	1690.23255
2012	1365.13433
2013	1056.43147
2014	949.58676