1995

4.1

2000

5.8

1930

6.5

1984

6.4

1998

6.6

1999

5.9

2001

5.8

1998

5.3

1982

7.3

1994

5.1

1992

7.0

2002

6.7

1993

6.0

1995

6.0

1997

8.6

2001

5.0

1941

6.9

2000

6.3

1998

5.6

1900

4.0