2013

6.2

1963

6.7

2004

6.7

1998

5.4

1983

4.0

1995

3.5

2001

6.0

1992

5.0

1984

4.5

1994

2.7

2012

6.3

2011

7.0

1994

4.0

2009

5.5

1991

6.9