Year Index (Units) 1990 0.104 1991 0.320 1992 1.360 1993 3.849 1994 6.400 1995 9.799 1996 14.167 1997 16.419 1998 17.397 1999 19.058 2000 20.720 2001 22.283 2002 22.674 2003 23.652 2004 26.291 2005 28.832 2006 30.200 2007 35.500 2008 43.400 2009 45.200 2010 49.500 2011 54.700 2012 62.500 2013 70.000 2014 78.100 2015 79.700 2016 80.700 2017 85.800 2018 92.800 2019 97.700 2020 100.200 2021 114.100 2022 129.200 2023 139.400 2024 154.455 2025 169.128 2026 182.997 2027 196.539 2028 209.903 2029 224.177