1988

6.9

2019

7.7

2006

8.2

1996

7.9

1972

8.7

1994

8.5

1979

8.2

1957

8.5

2019

8.5

1994

8.5

2004

7.2

1994

8.7

2013

8.0

1985

8.3

2001

7.5

2014

8.5

2019

8.1

2000

8.2

1997

8.2

2006

7.1