2002

7.6

2006

8.2

1985

8.3

1989

7.8

2023

8.1

2017

8.2

1994

8.7

2009

7.3

2011

7.3

1983

8.2

2019

7.7

2019

8.5

1995

8.4

2011

8.3

1994

8.5

1988

7.5

1988

6.7

1979

8.2

1957

8.5

1998

7.9