1997

6.0

2006

7.2

1982

7.9

1988

5.9

1933

4.0

1996

6.9

1995

7.0

1986

5.7

2000

6.9

1983

6.7

1979

7.0

2006

6.5

2019

7.1

2004

6.4

2020

6.3

2008

6.5

2013

0.0

2013

0.0

2007

7.1

2007

7.1