1967

7.3

1986

5.9

2014

0.0

1981

7.9

1984

7.3

2001

6.5

2007

7.2

1997

7.2

1937

7.0

1983

5.9

2018

6.8

2003

6.3

1999

7.4

1955

4.1

1988

4.3

1938

5.8

1937

6.6

1935

6.6

1988

5.4

2014

0.0