Year | Value | 2014 | 419.68459425441 | 2013 | 426.4343997617 | 2012 | 396.26942366423 | 2011 | 399.33991242356 | 2010 | 408.00290461782 | 2009 | 403.15432903825 | 2008 | 389.64254423076 | 2007 | 423.90107488589 | 2006 | 429.44913164029 | 2005 | 408.71791311475 | 2004 | 379.14751376249 | 2003 | 362.73492497574 | 2002 | 340.92884364043 | 2001 | 336.34445742339 | 2000 | 334.17131176407 | 1999 | 322.16956696768 | 1998 | 312.96548451744 | 1997 | 331.54964604999 | 1996 | 329.87986065634 | 1995 | 330.26467539093 | 1994 | 320.04298436323 | 1993 | 311.43014090822 | 1992 | 310.3488821046 | 1991 | 276.18300589641 | 1990 | 258.7639467074 | 1989 | 247.62160309896 | 1988 | 240.06223038383 | 1987 | 215.38383295415 | 1986 | 202.72609249094 | 1985 | 188.79434710846 | 1984 | 174.2907023176 | 1983 | 162.02173614311 | 1982 | 151.3181449994 | 1981 | 141.43789521235 | 1980 | 131.71006762907 | 1979 | 136.4986816948 | 1978 | 119.17475393883 | 1977 | 107.93486172502 | 1976 | 105.76537631436 | 1975 | 109.06101999297 | 1974 | 105.29232801095 | 1973 | 99.384584024571 | 1972 | 89.330328886467 | 1971 | 91.723255759671 |
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