Year	Index 2010=1
1978-01-01	0.306132397218524
1979-01-01	0.301642210029519
1980-01-01	0.319774115442377
1981-01-01	0.359245124282292
1982-01-01	0.398055908152138
1983-01-01	0.409291925436229
1984-01-01	0.414529660356768
1985-01-01	0.437029644939549
1986-01-01	0.476458154026659
1987-01-01	0.520240573104870
1988-01-01	0.547600394330229
1989-01-01	0.531929822819189
1990-01-01	0.534801566880373
1991-01-01	0.534550793256508
1992-01-01	0.527871673610160
1993-01-01	0.525966288005223
1994-01-01	0.517117563295906
1995-01-01	0.519178397371681
1996-01-01	0.521388923739765
1997-01-01	0.538335499647561
1998-01-01	0.583641391987608
1999-01-01	0.614414348858607
2000-01-01	0.623818176121454
2001-01-01	0.642810959125440
2002-01-01	0.663172520424096
2003-01-01	0.664654551154060
2004-01-01	0.672643126884732
2005-01-01	0.701085885087778
2006-01-01	0.763005043048966
2007-01-01	0.841676157340879
2008-01-01	0.921825172347128
2009-01-01	0.958049144310469
2010-01-01	1.000000000000000