2001

7.9

2003

6.6

1959

8.0

1999

7.4

2003

5.8

1989

6.9

1995

6.7

1931

7.1

2002

7.2

1996

6.6

2002

7.1

2004

7.3

2005

6.4

1997

7.9

1985

7.2

2001

6.7

2004

3.7

2004

5.6

1987

7.3

1963

5.6