1999

6.2

2020

6.9

2009

5.2

1969

7.1

1951

7.2

1957

7.2

2017

4.5

2024

7.3

2012

6.0

1961

7.2

1974

7.4

2008

5.6

1947

6.3

2005

8.6

1941

7.0

1997

6.3

1904

7.2

2011

6.6

2006

5.5

1993

6.1