1997

7.6

1963

6.8

1941

5.0

1984

5.3

1994

7.1

1939

5.7

1973

4.8

1985

4.3

1944

4.0

1975

6.4

1974

7.0

2009

0.0

1934

0.0

1998

0.0

1983

4.8

1996

5.5

1997

5.5

2006

4.8

1980

6.5