1937

5.0

1926

7.9

2017

4.0

2016

7.7

1994

7.5

2010

5.9

2006

4.9

1935

6.3

2015

6.2

2008

6.9

2003

6.9

1986

6.1

1969

6.5

1979

6.5

1940

0.0

2002

6.9

1963

7.2

1995

6.9

1992

0.0

2015

8.0