1981

6.3

2017

6.4

1994

7.1

1970

7.4

1953

7.5

1943

6.9

2005

6.2

2024

7.8

2000

7.1

2007

5.5

2013

7.0

2011

5.1

2004

6.1

1956

7.2

2013

5.7

2012

5.0

1972

7.3

1959

6.5

2008

4.5