Year Index (Units) 1980 35.582 1981 40.327 1982 45.157 1983 49.429 1984 53.222 1985 56.325 1986 57.755 1987 59.655 1988 61.266 1989 65.291 1990 65.502 1991 67.733 1992 69.395 1993 70.945 1994 72.128 1995 73.403 1996 74.930 1997 75.879 1998 76.393 1999 76.832 2000 78.226 2001 79.622 2002 81.165 2003 82.926 2004 84.863 2005 86.465 2006 88.102 2007 89.518 2008 92.347 2009 92.440 2010 94.047 2011 96.198 2012 98.329 2013 99.303 2014 99.912 2015 99.998 2016 100.304 2017 101.473 2018 103.604 2019 104.948 2020 105.502 2021 107.683 2022 114.040 2023 120.498 2024 123.410 2025 125.622 2026 127.864 2027 130.189 2028 132.528 2029 134.800