1998

6.0

1988

6.0

1956

5.3

2009

7.9

2006

6.5

2008

6.4

1960

6.1

1943

0.0

2011

5.2

2022

0.0

2007

8.0

2020

6.0

2008

1.0

2005

7.8

2010

6.0

2005

7.0

2010

1.0

2005

8.0

2015

6.9

2012

8.0