2006

7.5

2007

6.1

1931

5.0

1992

3.0

1939

5.0

1972

6.0

2000

7.1

2010

5.0

1972

6.0

1969

7.9

1962

6.2

2014

6.5

1986

7.0

2000

7.1

2006

4.6

2016

5.9

1994

4.1

1933

5.5

1937

4.0

1949

6.3