1954

6.9

1994

5.1

1998

6.0

1990

0.0

2004

6.8

1990

7.0

1936

6.5

1966

7.3

1989

7.2

1996

6.8

1958

7.7

1984

8.0

1957

8.5

1966

7.7

2002

7.1

1948

7.9

2006

6.9

1969

0.0

1961

7.2

1975

10.0