2009

6.5

1992

6.7

2009

6.6

1991

0.0

1996

7.0

2002

0.0

1948

5.5

1994

6.0

2010

6.4

2001

7.4

2006

7.6

2003

6.7

2009

6.1

2006

4.7

1992

5.3

2013

6.1

1973

6.8

2004

7.2

2008

6.4

2023

7.2