2003

8.2

2005

6.2

1998

0.0

1984

6.4

1991

7.4

2006

5.1

2001

6.8

2007

6.9

2014

6.6

2002

6.1

2001

6.9

1977

7.4

1991

6.0

1964

5.5

1996

6.7

1980

7.5

0.0

2003

6.6

2001

7.2

2007

6.0