Year	Measure
1971	785.31838
1972	789.56816
1973	958.86179
1974	964.36123
1975	840.25019
1976	892.93145
1977	696.19729
1978	830.10329
1979	895.28834
1980	949.41567
1981	901.27983
1982	678.58272
1983	729.91244
1984	740.01282
1985	870.05372
1986	965.15717
1987	996.94668
1988	741.76614
1989	732.69347
1990	722.85736
1991	878.60686
1992	868.42695
1993	1210.11468
1994	1292.97831
1995	1453.58763
1996	1514.07215
1997	1697.79123
1998	1656.88124
1999	1710.08121
2000	1516.69208
2001	1565.7032
2002	1483.73087
2003	1413.62688
2004	1368.52902
2005	1264.72239
2006	1181.61583
2007	1033.92785
2008	1321.00022
2009	1589.32203
2010	1470.65221
2011	1383.15584
2012	1458.60165
2013	1340.26579
2014	1337.36603