1952

6.7

1987

7.5

2004

7.1

2002

7.4

1924

7.1

2014

5.6

1975

7.9

1990

7.7

1976

7.1

1961

7.5

1958

6.2

1928

7.6

1985

7.3

1949

6.9

1974

7.4

1967

5.5

1923

6.8

7.8

1922

7.7

2001

6.0