2006

7.1

1980

0.0

1999

7.7

1999

7.5

1979

6.8

2005

5.0

1997

3.5

2005

8.8

2000

6.2

2005

7.4

1995

7.6

1957

6.9

2019

7.9

2010

10.0

1993

2.0

1988

5.7

2004

0.0

1977

4.0

1992

5.5

2006

7.8