Year Index (Units) 2001 45.412 2002 44.803 2003 44.826 2004 45.694 2005 48.238 2006 51.974 2007 56.528 2008 62.222 2009 62.796 2010 65.804 2011 70.733 2012 75.629 2013 81.477 2014 88.590 2015 92.590 2016 93.387 2017 95.394 2018 98.774 2019 101.148 2020 100.887 2021 100.000 2022 101.256 2023 107.868 2024 109.485 2025 111.825 2026 114.042 2027 116.250 2028 118.478 2029 120.721