2009

6.7

2010

8.4

2015

7.9

2013

8.0

1994

8.7

2017

7.6

2019

7.1

2016

7.6

2019

8.1

2004

7.5

2014

8.5

2010

7.4

2017

7.2

1999

6.9

1972

8.7

2022

8.2

2016

8.2

2018

6.8

2014

7.9

2017

7.2