1989

6.6

2000

6.4

1993

8.2

2005

8.1

1997

5.6

2007

0.0

2004

7.3

2004

4.8

2024

8.7

2004

8.4

1992

6.0

2013

7.9

1999

8.2

1999

7.5

1997

6.8

1982

5.0

2003

6.5

1997

7.6

2004

8.3

2002

7.4