2003

8.0

2013

5.3

1968

6.4

2002

9.1

2010

5.2

2014

8.5

1951

5.7

1980

6.2

2010

9.1

2017

5.5

2012

9.4

2001

4.3

2015

7.6

2008

5.2

2021

6.4

1920

6.5

2020

7.0

1941

6.2

1974

5.6