2007

5.1

1964

7.4

1991

6.7

1960

7.5

1938

7.1

1980

7.2

1994

6.2

1973

5.7

1958

7.5

1974

8.6

1994

6.3

1986

5.8

1939

7.5

1928

6.9

2008

5.9

1973

7.9

1990

7.5

1969

7.1

1940

7.0

2014

6.8