1994

6.6

2005

5.9

2004

7.3

2006

5.6

1983

7.0

2006

6.7

2008

0.0

1984

5.5

2001

6.7

2002

6.3

2006

6.8

1993

6.8

2002

5.9

2003

6.8

1987

0.0

1997

6.6

2018

4.7

1996

6.2

1997

6.3

1998

6.8