2005

8.1

1987

4.6

1998

5.1

1983

1.0

1992

2.2

1986

5.8

1988

4.0

1979

3.0

2004

6.5

1987

5.0

2004

5.2

1990

2.0

1996

3.0

1999

7.4

1992

5.8

1984

0.0

1995

6.0