1989

9.0

1959

7.9

2003

8.3

2005

7.1

1998

7.5

1991

6.8

1991

7.3

2003

6.3

2002

6.3

1976

6.0

1991

5.0

1971

7.2

2004

7.0

1982

6.9

1985

7.1

2004

6.5

1946

7.0

2017

6.9

1928

6.0

2002

7.2