2000

7.4

1998

6.6

1972

8.7

2001

6.7

2022

7.7

1991

7.1

2006

6.5

1974

7.9

1995

8.0

1974

8.6

2008

8.5

1946

7.6

1985

7.7

2007

8.1

2006

7.4

1995

8.0

1960

8.4

1986

7.5

2002

7.3

2001

6.4