Year Index (Units) 1980 0.011 1981 0.012 1982 0.014 1983 0.017 1984 0.020 1985 0.028 1986 0.041 1987 0.058 1988 0.085 1989 0.181 1990 0.351 1991 0.650 1992 1.604 1993 4.146 1994 6.056 1995 7.961 1996 11.033 1997 13.396 1998 16.432 1999 20.352 2000 25.255 2001 30.649 2002 37.465 2003 45.483 2004 53.655 2005 63.488 2006 69.213 2007 76.587 2008 86.122 2009 97.655 2010 105.956 2011 115.130 2012 122.700 2013 131.263 2014 141.515 2015 155.818 2016 183.662 2017 195.742 2018 210.412 2019 229.666 2020 265.798 2021 324.329 2022 359.983 2023 399.414 2024 444.829 2025 479.592 2026 513.164 2027 549.085 2028 587.521 2029 628.647