1987

7.0

1957

7.9

1954

8.0

1990

7.5

1984

6.8

2008

5.9

2002

7.8

1964

7.1

2006

6.6

2014

6.0

1983

6.5

2010

7.3

1984

7.2

2009

7.5

1946

8.3

1982

6.5

1995

6.9

1982

7.6

1999

6.7

2019

8.1