Year 2010 = 100 1980 0.47155663952601 1981 0.527269630263052 1982 0.579053637170756 1983 0.657240415428912 1984 0.788861373803463 1985 0.871841512337552 1986 0.994307938385303 1987 1.2444270491372 1988 1.66643920254176 1989 1.87385025903768 1990 2.09540565732911 1991 2.35974768955199 1992 2.92021969375051 1993 3.58523286279466 1994 4.82750300491308 1995 8.85005728504623 1996 12.177859809975 1997 13.290593779248 1998 17.2443661760535 1999 24.9705603276808 2000 32.3572237502022 2001 39.7023135414981 2002 45.5562746049722 2003 49.9191069406245 2004 55.6247640619101 2005 64.1967319204012 2006 73.1677722051448 2007 78.9862270363737 2008 85.8679825270992 2009 93.0998220352694 2010 100 2011 107.622822628485 2012 130.515558431753 2013 166.12455329055 2014 205.649014902299 2015 250.618999732887 2016 305.031174499811 2017 340.242124547702 2018 382.500802418103 2019 418.344325525805 2020 454.42867680603 2021 496.827527221711 2022 600.932616885901 2023 773.939571837271