1972

7.1

2005

5.2

2000

8.7

1992

4.3

1919

6.2

1957

5.0

1930

5.0

2006

7.2

2003

7.2

2004

7.8

1969

5.5

1968

6.0

2002

6.1

1997

7.4

2001

6.8

1953

7.1

1996

6.9

2004

6.8

1971

4.7

1965

7.5