2011

5.0

1985

6.9

1993

6.9

1987

7.6

1989

4.9

1984

5.9

2003

6.7

1986

7.1

1999

7.9

1987

5.0

1985

5.5

1989

5.2

2007

2.0

1988

5.8

1997

4.6

1985

0.0

2008

4.6

1994

7.2

1998

6.2