2011

5.3

2017

5.9

1983

7.0

2001

7.4

2000

6.5

1988

5.6

2016

10.0

2004

6.4

2002

5.8

2013

2.0

1979

5.7

2002

6.0

2006

6.0

2004

6.0

2005

5.9

2008

5.4

2008

6.3

1950

7.6

2007

7.8

1982

3.0