2001

8.0

2023

7.1

1998

6.2

1991

5.1

2017

6.0

2021

10.0

2009

7.9

2016

3.5

2007

7.6

2021

6.2

2014

7.5

1967

6.6

2002

4.7

2017

5.9

2018

6.9

2014

6.2

2015

5.5

2010

6.7

2018

5.9