2013

6.2

1963

6.0

2004

6.7

1998

5.2

1983

3.6

1995

2.7

2001

6.0

1992

5.0

1984

4.5

1994

2.3

2012

6.3

2011

7.0

1994

3.0

2009

4.8

1991

6.6