Year Index (Units) 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 107.906 2009 112.065 2010 115.032 2011 123.732 2012 126.828 2013 128.048 2014 128.901 2015 128.044 2016 127.096 2017 127.899 2018 131.060 2019 132.806 2020 132.402 2021 139.544 2022 148.657 2023 155.553 2024 160.200 2025 164.987 2026 169.112 2027 172.621 2028 176.139 2029 179.661