1976

5.3

1996

5.2

2006

7.0

2014

7.1

2011

7.0

1979

5.1

2012

0.0

2015

3.6

2004

0.0

1991

0.0

1955

5.4

2011

4.7

1997

7.3

2011

0.0

2014

8.0

2008

5.8

2011

5.0

2009

4.4

1973

0.0

2021

0.0