2008

4.4

1947

5.0

2013

7.3

2009

5.4

1978

7.5

2004

7.7

2002

7.6

1972

6.2

1976

8.0

1992

7.4

0.0

2007

5.4

2003

6.0

1931

5.0

2008

4.1

2006

7.5

2014

5.9

2017

0.0

2008

5.9

2005

7.8