Year Index (Units) 1982 11.634 1983 12.093 1984 12.736 1985 14.328 1986 18.247 1987 18.706 1988 21.247 1989 22.105 1990 23.635 1991 26.904 1992 29.169 1993 28.382 1994 30.534 1995 30.524 1996 31.477 1997 32.100 1998 33.136 1999 34.606 2000 36.681 2001 39.116 2002 43.304 2003 48.609 2004 53.511 2005 58.140 2006 61.862 2007 65.372 2008 73.344 2009 74.245 2010 76.273 2011 81.676 2012 83.555 2013 83.712 2014 84.965 2015 85.121 2016 85.304 2017 93.657 2018 99.922 2019 99.800 2020 98.400 2021 105.200 2022 117.100 2023 125.700 2024 133.044 2025 137.406 2026 141.852 2027 146.547 2028 151.346 2029 156.283