1972

7.1

1954

7.9

1946

7.6

1968

7.1

1995

7.9

1999

7.0

2002

5.5

2014

6.8

2009

5.1

1971

7.0

1975

6.5

1959

5.9

1949

5.5

1988

5.4

1989

7.3

1998

5.7

1943

5.7

1976

4.5

1976

6.7

1952

6.2