Year Index (Units) 1992 0.844 1993 8.696 1994 14.099 1995 18.463 1996 24.891 1997 28.122 1998 32.859 1999 45.949 2000 50.765 2001 52.635 2002 53.838 2003 56.834 2004 58.405 2005 61.279 2006 64.403 2007 77.344 2008 92.835 2009 92.798 2010 110.639 2011 116.954 2012 125.720 2013 130.711 2014 144.403 2015 149.244 2016 148.494 2017 153.922 2018 154.671 2019 159.398 2020 174.894 2021 194.475 2022 223.002 2023 239.225 2024 258.258 2025 272.554 2026 287.642 2027 299.148 2028 311.114 2029 323.558