Year Index (Units) 1993 18.632 1994 21.043 1995 23.290 1996 25.530 1997 28.157 1998 31.069 1999 33.179 2000 35.879 2001 38.191 2002 44.058 2003 45.727 2004 49.157 2005 53.500 2006 58.800 2007 65.300 2008 77.100 2009 78.400 2010 79.100 2011 86.500 2012 90.900 2013 91.700 2014 97.000 2015 100.400 2016 98.200 2017 100.300 2018 104.100 2019 106.900 2020 104.200 2021 107.800 2022 116.957 2023 121.210 2024 125.304 2025 129.135 2026 133.148 2027 137.204 2028 141.282 2029 145.666