1930

7.3

1933

7.5

1987

7.1

1960

7.4

2003

7.3

2021

7.4

2012

7.0

1983

5.9

2008

7.2

1947

7.4

1961

7.9

2005

6.9

2005

6.0

2016

7.1

1951

7.5

1987

6.7

1943

8.0

1990

6.4

2004

6.8