Year Index (Units) 1986 43.368 1987 44.930 1988 46.322 1989 48.175 1990 50.969 1991 53.824 1992 55.869 1993 58.830 1994 62.543 1995 64.674 1996 66.743 1997 69.239 1998 73.789 1999 75.314 2000 76.055 2001 73.899 2002 77.176 2003 79.529 2004 81.764 2005 85.907 2006 88.901 2007 93.494 2008 97.479 2009 99.139 2010 97.927 2011 101.849 2012 102.037 2013 100.000 2014 103.959 2015 111.061 2016 109.947 2017 106.453 2018 110.155 2019 116.868 2020 115.849 2021 110.068 2022 113.825 2023 120.057 2024 122.749 2025 124.852 2026 127.242 2027 129.784 2028 132.377 2029 135.022