2006

5.0

1993

6.3

2012

6.0

2000

5.0

2019

5.7

1994

5.2

2004

6.8

1920

6.2

2002

8.1

2012

5.8

2017

6.9

1998

6.0

1991

7.0

2009

4.5

1980

8.5

1981

6.5

2009

6.5

2013

3.9

2013

6.6

2010

7.5