2004

8.5

2005

6.7

1976

6.8

2001

6.7

1994

10.0

1965

7.8

2006

5.3

1994

8.4

1985

7.5

2001

6.5

2006

8.5

1964

7.9

2004

6.3

2001

6.6

2011

5.5

2020

6.8

1987

5.0

1957

0.0

2009

7.3

1968

6.7