1973

5.7

2009

6.7

1976

6.6

1957

0.0

1994

6.8

1950

6.1

1947

5.7

1943

5.6

1965

7.8

1936

5.3

1942

6.2

1944

5.0

2014

0.0

2013

6.9

2014

7.7

2013

6.7

1953

0.0

2016

4.1

2008

1.0

1965

6.8