2009

6.6

1995

0.0

2004

7.7

2006

6.0

1959

6.0

1999

8.3

1991

6.6

2005

8.1

1989

0.0

1982

5.0

1953

6.0

1972

7.3

1996

6.7

1999

8.0

1971

7.4

2005

4.9

2001

7.6

1991

7.8

1992

6.9

1994

6.2