Year 2010 = 100 1970 2.28234182497118 1971 2.28666444206876 1972 2.31580208321592 1973 2.47397784942758 1974 2.82859254796529 1975 3.04200175480057 1976 3.27926540411565 1977 3.58441015148199 1978 4.11353050302472 1979 4.51409302029745 1980 5.49420642184286 1981 5.93463307451883 1982 6.48776796546272 1983 7.52471577694459 1984 8.27813192652405 1985 9.37127376021372 1986 10.9904941037931 1987 12.4915629135013 1988 15.770668220702 1989 20.0734332942459 1990 23.4431534634657 1991 27.6447372776526 1992 30.9942852337727 1993 33.645010093226 1994 35.1976941127209 1995 37.4210300168739 1996 40.5340846104156 1997 42.2251266118457 1998 42.8160304930273 1999 43.202279859263 2000 43.9757394110535 2001 44.4292461296188 2002 47.2675063979282 2003 54.0624206218564 2004 63.2872469035214 2005 66.6268484130899 2006 71.3109817305762 2007 77.6852037743425 2008 94.1025898413973 2009 88.7924111624172 2010 100 2011 114.756073077695 2012 117.576791808874 2013 121.521782774543 2014 126.776751656294 2015 122.806665328247 2016 111.48363782373