1998

6.3

1997

6.9

1984

6.6

2006

5.5

2001

6.7

2012

6.3

2006

6.3

2022

5.5

1994

7.4

2007

10.0

2001

5.9

1924

6.5

1948

7.2

1940

7.1

1993

5.0

2000

5.1

1962

7.8

1997

7.4

1956

7.1

2001

6.7