Year Index (Units) 1986 38.430 1987 39.770 1988 41.340 1989 43.120 1990 46.180 1991 47.900 1992 50.040 1993 53.250 1994 55.740 1995 57.480 1996 59.260 1997 60.910 1998 61.760 1999 64.060 2000 66.330 2001 68.000 2002 70.830 2003 72.450 2004 74.460 2005 77.280 2006 79.220 2007 87.079 2008 85.460 2009 91.252 2010 90.595 2011 96.140 2012 92.568 2013 92.642 2014 94.681 2015 93.804 2016 92.978 2017 92.548 2018 96.672 2019 100.133 2020 97.062 2021 100.603 2022 106.372 2023 108.790 2024 110.764 2025 112.775 2026 115.028 2027 117.326 2028 119.671 2029 122.062