Year Index 1999 81.356 2000 83.532 2001 83.028 2002 82.704 2003 83.599 2004 86.273 2005 89.645 2006 94.006 2007 97.305 2008 107.8 2009 111.7 2010 115.3 2011 124 2012 127.1 2013 127.6 2014 128.465 2015 128.263 2016 128.868 2017 129.562 2018 132.153 2019 134.796 2020 137.492 2021 140.242 2022 143.047 2023 145.908 2024 148.826