Year 2010 = 100 1960 1.45344733155822 1961 1.48191877880353 1962 1.42492190269571 1963 1.45223290583071 1964 1.53060361047898 1965 1.47123186453332 1966 1.52704130572224 1967 1.62559840399201 1968 1.67190836582962 1969 1.63866018810006 1970 1.71465602291049 1971 1.81083825134245 1972 1.84883616874768 1973 2.22525303804313 1974 2.57079659944684 1975 2.86553761084839 1976 3.19302762351678 1977 3.57509930496322 1978 3.74703156161413 1979 3.91759927654558 1980 4.67355538912178 1981 5.5332166723763 1982 6.32465086965823 1983 6.71218071798249 1984 7.33168265861352 1985 8.59661283254517 1986 11.6968516191392 1987 18.654649846623 1988 25.1021094710319 1989 27.9635534567219 1990 33.3876067915421 1991 36.3924914027809 1992 40.3990042177659 1993 45.7410213044127 1994 52.7524187306365 1995 56.9620394869366 1996 61.6613451428462 1997 62.8243467794185 1998 62.3235326775453 1999 60.0152536894881 2000 57.7069747014309 2001 59.4381839424738 2002 59.3606139726559 2003 62.8016475245647 2004 65.5857333402583 2005 70.3343695863726 2006 77.3847645397452 2007 80.4087363386503 2008 93.0693533820479 2009 95.7878134427753 2010 100 2011 104.753163888857 2012 143.199979473582