1996

6.4

2021

6.7

2012

6.7

2007

6.4

2007

6.9

1999

7.0

2019

5.7

2001

7.2

2014

7.4

2013

4.6

2006

6.7

2019

7.1

2012

3.3

2025

10.0

2023

7.3

2015

6.4

2013

6.4

2015

5.2

1978

7.5