1971

7.8

1938

5.3

2013

8.0

2003

6.3

1977

6.9

2003

7.1

1971

7.5

1953

7.8

2007

6.3

1958

7.5

2005

7.0

2000

6.1

2020

0.0

1981

6.0

1965

6.2

1973

7.3

1971

6.8

2008

5.9

2010

4.9

2017

6.6