1970

6.1

2008

8.9

2019

8.7

2007

7.9

2016

8.6

2013

8.7

2013

8.5

2010

8.1

1989

8.0

2014

8.3

2019

8.5

2011

8.5

2014

7.8

1994

8.4

2018

8.0

2022

8.1

2005

8.7

2019

8.0

2024

7.6

2011

8.3