2007

7.5

1990

7.3

1967

7.2

2002

8.0

2007

0.0

1994

7.1

1984

0.0

1999

7.5

1996

6.3

2001

6.6

1978

0.0

2003

7.3

2006

7.8

1999

7.6

2006

5.0

1982

7.0

2005

8.3

2005

7.6

2003

8.1

2006

9.0