 Year         1
 1962    3025.6
 1963    3756.7
 1964    3645.9
 1965    2598.8
 1966    3710.4
 1967    3944.3
 1968    3657.7
 1969    3521.3
 1970    3551.2
 1971    3531.1
 1972    3090.2
 1973    5097.3
 1974    3104.5
 1975    3712.4
 1976    3517.2
 1977    3366.2
 1978    4104.8
 1979    3058.2
 1980    3404.6
 1981    3662.7
 1982    2978.9
 1983    3511.0
 1984    3639.0
 1985    2994.1
 1986    3096.2
 1987    2945.8
 1988    4076.0
 1989    3472.5
 1990    4563.0
 1991    3976.4
 1992    3902.1
 1993    2997.3
 1994    4622.9
 1995    3851.4
 1996    4434.5
 1997    3453.9
 1998    4455.2
 1999    4486.1
 2000    3759.6
 2001    3723.2
 2002    3475.5
 2003    4049.2
 2004    2971.3
 2005    4213.8
 2006    4405.8
 2007    3714.1
 2008    3834.3
