2009

6.5

2014

7.8

5.3

2016

7.1

2009

7.1

1970

6.3

2017

5.9

2010

6.8

1993

5.3

2014

7.8

2004

5.9

5.6

1993

5.4

1964

5.0

2006

5.9

1963

6.9

2021

7.7

2011

5.5