2002

6.4

2006

6.5

1993

7.9

2008

6.4

2002

6.5

1982

6.2

1995

6.0

2002

3.4

2006

7.1

2014

4.0

2008

6.4

2005

5.5

2008

6.9

1999

0.0

2006

6.0

2008

6.6

2008

7.3

1978

6.3

1992

5.3

1994

6.1