2012

6.3

2019

8.7

2017

5.9

2007

5.7

2011

5.6

2015

7.4

2012

7.2

5.4

7.8

2023

8.5

2021

6.2

2013

6.3

2016

6.8

2008

7.5

1969

4.5

1996

8.0

2023

6.5

1967

6.3

2012

9.3