2005

6.8

2021

5.6

2008

6.9

1967

7.8

2007

6.7

2008

6.5

1989

6.3

1991

7.5

2006

5.5

1999

7.0

2007

7.3

2003

6.4

1994

8.3

1954

8.4

2005

6.4

1993

5.5

2000

8.1

2010

5.9

1999

4.7

2002

5.9