2007

7.3

1970

7.0

2009

6.8

2008

6.6

2014

6.1

1951

5.4

1973

7.5

2024

6.6

1979

7.0

1975

6.4

1977

6.9

2016

6.3

2006

6.2

1976

6.1

1967

6.2

1963

6.8

2009

6.5

2013

7.2

1974

7.6

2021

6.5