1995

7.8

2008

8.9

2014

8.3

2006

8.6

2011

8.3

2020

8.1

2002

7.5

2018

8.0

1989

8.0

2006

8.2

2013

8.7

2015

6.7

2024

8.3

2002

7.4

1998

8.2

2021

7.9

2008

7.7

2005

8.1

2021

7.8

2000

8.1