1962

9.0

1931

5.8

2010

7.1

1957

7.2

2010

6.1

2005

9.9

2012

6.7

2009

8.5

2010

5.6

1998

6.1

2003

5.8

2013

6.8

1978

6.0

1972

10.0

2013

7.0

2004

6.6

2019

7.1

2009

5.6

2006

6.4

2017

8.6