2007

7.4

2009

8.0

1998

6.1

2002

8.4

1993

7.1

1996

8.1

2005

0.0

2002

5.1

2007

4.0

1989

1.3

1992

6.2

1980

7.3

1996

5.3

1993

5.3

1992

6.7

1991

7.0

1999

3.1

2003

4.8

1998

5.3