2008

4.0

2007

6.1

2006

7.1

2004

6.2

1994

7.1

2005

7.2

2006

7.0

2003

5.4

1984

6.0

1997

6.8

2000

5.3

1944

7.2

1975

6.6

1980

6.2

2013

4.1

10.0

1993

6.8

1988

7.3

2007

7.3

2024

0.0