1988

7.0

2005

5.8

1990

0.0

1992

6.0

2000

5.3

2010

6.9

1986

6.8

1989

6.2

1993

0.0

1995

0.0

2006

5.9

2002

5.0

1996

6.5

1994

6.2

1983

5.2

1992

0.0

1997

7.0

2001

6.0

1992

3.0

1993

3.0

1988

6.4

1991

6.0

1988

0.0