2005

6.9

1953

7.3

1928

0.0

1972

6.8

1993

7.8

1980

4.7

1981

5.9

1969

6.0

1995

6.3

2007

6.0

1979

6.8

2006

5.5

2006

6.5

1982

5.2

1986

4.7

1998

6.9

1962

6.7

1986

7.1

1999

6.5

1978

6.2