1932

6.0

2009

0.0

1976

6.6

1988

7.4

1999

5.3

2005

6.6

1999

6.5

1995

7.3

1997

5.7

1982

7.2

2003

5.9

1988

6.9

1988

5.8

1986

6.4

2000

5.9

1999

6.8

2002

6.6

1989

6.2

1996

6.4

2006

6.7