Year	Measure
1971	458.72789
1972	497.62542
1973	552.87224
1974	602.88742
1975	649.09987
1976	719.3157
1977	787.12394
1978	856.90429
1979	938.00521
1980	1012.74548
1981	1017.75438
1982	1052.21562
1983	1108.04149
1984	1204.82813
1985	1279.25087
1986	1350.68393
1987	1364.41028
1988	1415.94317
1989	1446.33673
1990	1457.34767
1991	1483.01142
1992	1491.11427
1993	1534.81756
1994	1564.08884
1995	1631.61139
1996	1684.03027
1997	1758.875
1998	1804.24778
1999	1827.70539
2000	1891.97082
2001	1742.4857
2002	1800.51713
2003	1875.32316
2004	1948.4086
2005	2007.27743
2006	2063.09732
2007	2157.43734
2008	2218.88359
2009	2185.74526
2010	2361.05594
2011	2416.46285
2012	2485.58814
2013	2551.40799
2014	2601.36551