2002

6.9

2007

6.8

2007

6.7

1969

4.2

1955

6.6

1969

5.1

1979

7.3

2007

5.9

2005

6.7

1986

6.9

2004

6.5

1941

5.2

2006

6.5

2005

6.2

2004

7.3

1990

6.5

2007

7.1

1989

6.3

1955

6.0

1982

5.2