1996

6.4

1984

5.9

1991

6.8

2006

7.8

2006

6.9

1991

0.0

1974

0.0

1984

7.0

1998

7.4

1931

7.2

2005

7.1

1997

2.0

2023

5.4

2020

5.7

1976

7.2

2001

7.8

2004

7.3

1961

6.0

1974

7.0

1947

6.7