Year 2004-2006 = 100 1961 19.7456461031087 1962 21.8848797759602 1963 22.2827711137107 1964 22.720157015386 1965 23.9055309528908 1966 22.6413777352092 1967 23.7191598407387 1968 26.1649154720946 1969 25.6689562680478 1970 25.97643807423 1971 28.2826516543611 1972 29.0878369919885 1973 28.5123950408031 1974 31.0136536303529 1975 31.9555133900461 1976 33.1548846826769 1977 32.2773099095173 1978 34.3544146446117 1979 34.7104273323833 1980 37.2894594899468 1981 38.101247475866 1982 41.3781128221215 1983 42.0556639035468 1984 43.0917674756728 1985 47.1061135607212 1986 50.5372220899649 1987 50.7060115552623 1988 52.1532897109274 1989 53.2767906962938 1990 59.4200408377361 1991 61.0600290433029 1992 64.2864398081978 1993 65.9344105960867 1994 67.2772660513304 1995 68.2786260283016 1996 77.2337701362452 1997 74.0283855581869 1998 81.0128481862408 1999 80.1582117363887 2000 81.6821842386327 2001 81.3879950275386 2002 89.7993051091874 2003 93.9618609845906 2004 95.7629125839397 2005 100.456783994065 2006 105.925477091186 2007 106.608327742261 2008 101.737103910035 2009 108.217887648576 2010 109.16802041981 2011 112.041938204945 2012 114.938243491076 2013 116.538785415126 2014 115.390413292705