2009

6.8

1992

6.8

2017

6.8

2013

8.0

2012

6.0

2015

7.0

1995

7.8

2006

7.3

1980

8.6

2014

6.7

2015

6.8

2015

7.9

2002

7.7

1970

6.2

2023

5.7

2006

6.9

2020

8.2

2012

6.9

2006

7.0

2012

6.7