2008

5.5

1988

5.7

1995

0.0

1981

0.0

1992

6.0

2007

6.4

1999

6.7

1994

7.6

2000

7.2

1994

4.6

1997

6.6

1988

4.3

1994

5.8

2003

6.7

2008

7.7

1986

0.0

1999

6.7

2004

6.6

1988

0.0

1988

0.0

2004

5.4

2002

6.7

2002

2.5

1984

5.6

1987

0.0

1985

7.3

2002

6.4