Year	Measure
1990	1240.9349
1991	1217.81546
1992	1358.17905
1993	1397.64157
1994	1248.19007
1995	1260.42782
1996	1485.08502
1997	1343.6269
1998	1435.86737
1999	1338.70334
2000	1311.02865
2001	1261.30606
2002	1233.48161
2003	1358.53885
2004	1335.12409
2005	1359.37828
2006	1421.32182
2007	1464.69354
2008	1461.05357
2009	1360.63483
2010	1390.53401
2011	1506.1381
2012	1427.79007
2013	1301.02629
2014	1262.55659