1999

7.5

2014

7.7

2023

9.8

2010

6.7

2025

9.2

2009

7.9

2007

8.0

2015

7.9

2015

7.6

2013

6.7

2009

6.4

2015

8.9

2013

7.3

1974

6.5

2004

4.4

2006

6.9

2017

5.9

2025

10.0

2015

7.5

1996

8.1