2001

5.9

2003

5.7

1988

7.3

2002

5.8

2006

6.6

1994

6.7

1972

6.5

2006

6.5

1985

7.6

2002

6.6

1991

5.7

2004

7.1

2005

5.9

2000

6.4

1992

6.3

1996

7.0

1930

4.7

1980

6.9

2023

9.2

2009

6.7