Year	Ratio
1970-01-01	1.040959954261780
1971-01-01	1.050580024719240
1972-01-01	1.054380059242250
1973-01-01	1.054600000381470
1975-01-01	1.074790000915530
1976-01-01	1.067180037498470
1977-01-01	1.072559952735900
1978-01-01	1.102399945259090
1979-01-01	1.072010040283200
1980-01-01	1.066110014915470
1982-01-01	1.060299992561340
1983-01-01	1.061890006065370
1984-01-01	1.054290056228640
1985-01-01	1.111670017242430
1986-01-01	1.100589990615840
1987-01-01	1.103000044822690
1988-01-01	1.114590048789980
1989-01-01	1.106600046157840
1990-01-01	1.076339960098270
1991-01-01	1.066529989242550
1992-01-01	1.054949998855590
1993-01-01	1.048300027847290
1994-01-01	1.038599967956540
1995-01-01	1.044090032577510
1996-01-01	1.041479945182800
1997-01-01	1.039970040321350
1998-01-01	1.038609981536870
1999-01-01	1.019090056419370
2000-01-01	1.022930026054380
2001-01-01	1.018949985504150
2002-01-01	1.001989960670470
2003-01-01	0.995299994945526
2004-01-01	0.990890026092529
2005-01-01	0.985970020294189
2006-01-01	0.987079977989197
2007-01-01	0.991289973258972
2008-01-01	0.989650011062622
2010-01-01	0.991620004177094