Year Index 1980 309.628 1981 338.597 1982 366.944 1983 376.397 1984 389.017 1985 403.572 1986 404.013 1987 418.53 1988 430.814 1989 443.283 1990 462.448 1991 476.892 1992 489.178 1993 498.407 1994 514.247 1995 528.513 1996 549.186 1997 556.503 1998 586.411 1999 600.615 2000 620.405 2001 639.925 2002 652.2 2003 666.163 2004 691.843 2005 737.438 2006 777.946 2007 807.367 2008 860.347 2009 903.214 2010 925.741 2011 947.68 2012 958.855 2013 970.189 2014 981.836 2015 1001.25 2016 1020.46 2017 1047.93 2018 1074.18 2019 1077.91 2020 1091.83 2021 1105.73 2022 1120.06 2023 1135.46 2024 1151.53