2011

5.3

1977

4.1

2002

6.3

2004

5.5

1992

5.0

1991

5.8

2017

6.7

1989

6.0

2004

3.8

2008

6.8

1998

5.8

2009

6.0

2015

4.5

2005

0.0

1971

5.2

2015

4.2

2014

4.5

1994

3.5

1948

5.5