1944

6.3

1928

7.9

2005

4.3

2008

7.0

2003

6.0

1964

6.2

2010

3.9

1987

4.5

2004

5.2

2004

6.8

2000

7.4

2004

5.6

2005

6.2

2006

5.1

1933

6.2

1954

6.0

2007

4.6

1954

5.2

2006

4.6

1965

5.6