1998

8.6

2022

7.0

1998

7.2

2003

8.2

2004

7.7

1980

7.3

2004

8.3

2004

8.6

1993

6.6

2007

8.2

2010

6.7

2015

7.8

2000

8.0

1975

7.0

2011

6.3

2014

6.1

1997

8.1

1962

7.8

1992

6.9

1973

6.8