Year 2000 = 100 1980 43.67809285 1981 55.22087442 1982 38.90758708 1983 32.35060914 1984 41.32245 1985 46.09295577 1986 35.72944323 1987 42.86875187 1988 45.13885462 1989 44.02025326 1990 51.92284283 1991 44.32293363 1992 65.40626614 1993 48.11959822 1994 47.83994789 1995 48.28947368 1996 67.10526316 1997 85.42763158 1998 68.38815789 1999 102.2697368 2000 100 2001 104.5723684 2002 123.6842105 2003 180.2631579 2004 191.8421053 2005 274.7697368 2006 288.7368421 2007 449.375 2008 690.1973684 2009 745.3914474 2010 548.2523026 2011 665.4078947 2012 780.1611842 2013 866.1508893 2014 940.1404903 2015 680.675561 2016 428.9638158 2017 475.7631579 2018 507.9708282