1966

7.6

1995

6.3

1989

7.1

1952

0.0

2018

5.9

2008

7.2

1963

7.7

1996

7.3

2004

7.3

1987

6.5

1991

7.6

1947

7.6

1959

7.3

1997

7.0

1976

7.2

1990

8.5

2007

6.7

1993

5.6

2000

6.4

1935

6.4