Year | Value | 2021 | 1,126.7520877704 | 2020 | 1,070.6216749973 | 2019 | 1,114.7108184318 | 2018 | 1,093.9084465934 | 2017 | 974.28989453707 | 2016 | 827.60316294834 | 2015 | 838.4555391905 | 2014 | 799.37573530372 | 2013 | 774.29953156838 | 2012 | 759.97198068553 | 2011 | 753.86893553301 | 2010 | 564.77710634393 | 2009 | 459.87793266597 | 2008 | 449.94759219928 | 2007 | 372.48959409069 | 2006 | 328.62060562017 | 2005 | 297.34438239996 | 2004 | 268.35130236332 | 2003 | 238.87823592792 | 2002 | 229.93501644225 | 2001 | 232.55340779974 | 2000 | 217.06887949808 | 1999 | 202.58225430767 | 1998 | 200.38647314977 | 1997 | 207.70156708682 | 1996 | 195.29968155875 | 1995 | 192.60806261187 | 1994 | 183.15238249544 | 1993 | 168.7184377075 | 1992 | 161.49069561555 | 1991 | 191.67200539402 | 1990 | 181.87922364034 | 1989 | 181.12216356099 | 1988 | 181.98967050214 | 1987 | 154.81762981272 | 1986 | 152.23289999034 | 1985 | 142.88996268176 | 1984 | 146.25797160555 | 1983 | 139.79477845319 | 1982 | 140.55589723668 | 1981 | 136.32773994598 | 1980 | 118.97567768565 | 1979 | 116.153497233 | 1978 | 103.50461384987 | 1977 | 91.507745808243 | 1976 | 99.10672743393 | 1975 | 109.80871034523 | 1974 | 86.89047307951 | 1973 | 70.954372386825 | 1972 | 76.507545777411 | 1971 | 67.437788407849 |
|