2007

7.5

2022

7.1

2014

7.0

2015

6.1

2002

5.4

2006

6.4

2008

6.8

2013

5.5

1998

4.4

2017

7.3

2015

6.2

2018

6.4

2015

7.3

2008

7.4

1926

5.6

2012

7.2

2015

6.9

2013

7.5

2014

7.1

2020

6.0