2007

6.6

1976

3.3

2005

3.8

1999

6.6

1985

7.7

2006

6.6

1999

1.0

2008

4.0

2017

6.8

1973

3.7

1967

5.3

2008

6.6

1984

6.0

1975

5.8

1984

7.2

2007

6.9

2001

3.9

2002

3.2

1999

3.2

1970

3.8