2016

7.5

2002

7.0

1992

7.4

1988

8.4

2005

3.5

1985

6.2

2009

8.2

2021

8.0

2021

7.0

1977

5.8

2008

6.2

1995

7.2

2000

1.0

1962

7.2

2001

7.0

1991

7.5

2009

6.7

1976

7.2

1973

7.8

2017

6.6