2000

6.3

1973

6.9

1972

6.5

2001

7.4

2001

5.5

2002

6.1

1982

6.8

2008

6.4

2007

5.9

2000

5.8

2004

3.9

1982

6.7

1984

5.6

1999

6.8

1975

1.0

1973

2.3

1978

3.4

1978

7.5

1981

0.0

1979

3.6