2006

7.0

2011

5.2

2025

7.8

1976

7.5

2000

7.2

1952

8.3

1988

6.2

1966

7.3

1946

6.8

2007

7.1

1990

6.1

1969

7.3

2004

6.5

2000

5.1

2005

6.4

2012

5.3

2009

6.1

1969

7.7

1969

7.9

2006

5.5