1994

7.4

2000

7.7

2006

6.7

2017

5.7

2004

4.2

2007

7.9

2015

4.6

2014

8.3

2024

7.8

2010

7.5

2000

7.1

2003

7.2

2001

6.3

2005

7.7

2014

7.4