2008

7.7

2011

7.2

2017

5.9

2011

5.7

1994

5.7

2017

6.9

10.0

2003

6.3

2019

9.8

2006

6.1

1966

6.1

2007

8.0

2012

6.4

2007

5.7

2017

6.6

2015

5.1

2009

5.9

1970

7.2

2020

5.5

2021

5.7