1996

6.9

1973

7.9

1957

6.4

1964

6.5

2005

0.0

1978

4.7

1994

3.7

2013

5.7

1937

4.5

2000

4.7

1958

7.0

1968

4.5

2007

0.0

1956

5.5

1960

5.8

2004

6.2

2015

6.9

1935

7.2

2006

5.7

1993

6.4