2005

3.7

6.1

1994

8.9

1940

6.0

1997

6.3

2011

7.2

1979

4.5

1963

2.7

2006

6.3

1999

7.1

2021

5.5

2014

7.0

2025

7.8

2001

6.7

1974

10.0

2010

5.3

2004

5.0