1964

7.3

1953

7.3

2006

7.7

1978

7.4

2002

7.1

1993

7.7

2006

3.0

2005

6.6

2003

6.5

2014

4.0

1980

7.2

1957

0.0

2007

7.4

2021

6.7

2006

6.7

1992

7.7

2001

7.5

1952

8.1

1930

6.1

1944

7.0