1987

7.3

2000

6.3

1932

7.8

1930

7.7

2004

6.1

1929

5.0

2002

6.8

1984

5.6

2003

5.8

2014

7.5

1972

7.4

1991

6.4

1999

6.4

1934

7.0

1974

5.7

1930

4.7

1932

4.8

2006

6.4

2003

6.7

1932

6.8