1978

6.0

2005

7.8

2001

7.4

2006

7.1

2007

6.1

2016

0.0

2013

0.0

1996

5.8

1945

5.6

1988

8.5

2012

7.0

2008

6.6

1984

6.0

1984

7.2

2017

6.8

2007

6.6

2018

6.9

1979

6.3

1976

6.3

2015

6.5