2006

5.8

2013

7.5

1969

6.4

2005

6.8

1960

5.2

2009

5.9

1978

6.8

2009

6.5

1995

6.1

1996

6.9

1953

6.7

1925

4.9

2003

7.3

1971

7.1

1953

7.2

1951

6.8

1991

0.0

1991

0.0

1979

7.3

2008

7.8