Year 2015 = 100 1980 11.9140844367 1981 8.4371456572 1982 6.4938961785 1983 7.3517459651 1984 8.6283061706 1985 8.6638071152 1986 10.2872041255 1987 11.6028485038 1988 11.349030575 1989 13.1541130278 1990 14.5342015997 1991 13.7080377574 1992 17.9952530807 1993 25.9167919473 1994 29.5919274289 1995 33.8921728828 1996 34.2258769586 1997 40.0357657386 1998 46.5698911715 1999 52.6918422246 2000 50.3995007651 2001 51.2386715543 2002 56.8770098634 2003 59.2512870513 2004 61.6300678378 2005 68.5820096125 2006 75.4982876926 2007 80.1720796505 2008 85.4533026707 2009 69.9689057962 2010 81.9521255566 2011 90.9695223847 2012 98.8456638959 2013 102.0745895596 2014 100.3317769904 2015 100 2016 99.6086097241 2017 107.1588053161 2018 109.4626506128 2019 104.8430695675 2020 92.2394269632 2021 116.8260711989