2007

4.7

1957

8.1

1955

7.9

1965

6.4

1946

7.8

1988

5.5

1988

6.8

2001

7.5

1979

6.2

1954

8.4

1985

7.2

1964

7.2

1980

6.7

1966

6.1

2012

7.2

1956

7.1

1985

6.4

1994

6.4

1956

7.7

1962

7.6