1959

7.8

2003

7.4

2001

6.2

1954

8.0

1958

7.6

1963

7.1

1988

6.6

2006

7.0

2005

5.8

1955

7.3

1950

8.3

1992

6.9

1998

6.5

2006

6.6

2023

6.7

2007

7.3

1997

6.1

1949

7.6

1999

6.5

2010

8.0