2008

4.5

2012

6.1

1999

6.8

1992

6.3

1998

5.1

2015

6.6

1981

5.9

2024

6.9

2005

6.2

1976

8.0

2015

6.6

2017

5.7

1976

7.5

1928

7.3

1943

6.9

2024

5.8

1963

7.0

1953

7.1

2005

5.8