2006

5.7

2004

7.7

1984

5.5

2018

7.5

2000

5.4

2005

6.1

2007

7.4

1964

6.1

2006

6.7

2011

6.1

2017

6.5

2005

5.7

1959

6.9

2008

6.7

2017

6.1

2017

7.5

2003

5.9

2005

6.7

2014

5.3

2017

6.5