2015

8.4

2006

6.5

2016

6.7

2012

6.0

1984

7.2

2008

7.7

1988

6.3

2019

7.4

2018

5.3

2022

6.1

1982

6.4

1973

5.0

1974

7.3

2022

6.6

2008

7.0

2016

6.7

2007

6.3

2017

4.4

2007

7.0

2001

7.0