Year Index (Units) 1993 20.035 1994 29.583 1995 38.163 1996 45.697 1997 49.952 1998 54.338 1999 56.022 2000 58.224 2001 61.500 2002 63.707 2003 64.590 2004 66.553 2005 69.293 2006 72.372 2007 77.253 2008 85.447 2009 85.617 2010 87.963 2011 92.432 2012 96.332 2013 99.459 2014 99.933 2015 100.000 2016 100.800 2017 104.480 2018 108.045 2019 110.496 2020 109.795 2021 114.722 2022 137.032 2023 149.523 2024 155.741 2025 159.614 2026 163.620 2027 167.727 2028 171.937 2029 176.252