1964

6.3

1996

5.5

1992

7.6

2024

1.0

1984

6.1

1979

6.3

1981

6.0

1953

7.3

1946

8.3

1999

6.9

2019

0.0

2009

6.1

1950

7.6

2007

5.5

2002

6.9

2006

6.6

2008

5.4

2008

5.6

1988

5.6

2006

6.3