Year Index 2010=1, Trend 1977-01-01 0.0994392931460046 1978-01-01 0.1164495494762690 1979-01-01 0.1352682307407380 1980-01-01 0.1682229041469970 1981-01-01 0.2009941733907180 1982-01-01 0.2399472718330310 1983-01-01 0.2859104089446060 1984-01-01 0.3422756292676460 1985-01-01 0.3978091790868030 1986-01-01 0.4574036099617740 1987-01-01 0.4923342236843340 1988-01-01 0.4955732050379130 1989-01-01 0.5286245601088990 1990-01-01 0.5971849256974290 1991-01-01 0.7021022620353480 1992-01-01 0.7824830059961740 1993-01-01 0.8299869810608140 1994-01-01 0.8470871626404520 1995-01-01 0.8551496261572810 1996-01-01 0.8506283068381900 1997-01-01 0.8638149727439130 1998-01-01 0.8803591403888830 1999-01-01 0.8890979050596970 2000-01-01 0.8876310145349500 2001-01-01 0.9009242654171890 2002-01-01 0.9204360668467500 2003-01-01 0.9236004630864190 2004-01-01 0.9284336740767220 2005-01-01 0.9495542782671900 2006-01-01 0.9634219097492340 2007-01-01 0.9623275451549790 2008-01-01 0.9853632093212290 2009-01-01 0.9979841944341530 2010-01-01 1.0000000000000000