2011

6.6

2016

6.5

2006

6.4

2022

7.3

2014

7.0

2009

5.6

1994

6.6

2022

7.1

2007

7.7

1973

6.2

2017

6.9

2008

6.7

2021

7.7

2005

5.2

2021

7.2

2009

5.5

1998

6.1

2015

6.5

1987

5.9

2006

6.1