1957

8.1

1993

4.9

1994

4.8

1988

6.8

1955

7.9

2001

7.5

1944

7.6

2007

7.0

1964

7.2

1995

5.9

1946

7.8

1997

7.5

1960

8.2

2004

8.4

1955

7.0

1962

8.0

1968

7.3

1969

7.0

2012

7.3

1962

7.9