1992

7.5

1994

6.7

1947

7.4

1996

6.9

2002

6.5

1960

6.1

2003

5.9

1997

7.1

1936

6.6

1937

6.0

2007

6.0

2004

7.0

2006

4.0

1995

6.0

2011

9.0

2014

7.0

1969

6.0

1938

0.0

1960

6.1

1951

6.7