2005

5.7

2002

6.7

2004

4.8

2002

5.3

1965

7.4

1991

6.4

1995

1.5

2004

6.0

1994

8.3

1994

7.9

2003

7.8

1989

7.1

1994

7.5

2003

7.4

1990

7.7

2001

1.0

2006

7.0

1945

8.0

2000

6.9

1962

8.0