2000

7.9

2006

7.4

1994

8.3

2008

7.0

2011

3.0

2018

7.3

1979

5.6

2003

7.8

1966

7.3

2011

0.0

1967

7.7

1998

7.0

2001

8.1

1967

7.2

2003

7.1

1997

7.7

1997

8.0

1970

0.0

2012

8.3

1992

8.5