1998

9.0

2004

8.1

2011

7.9

2012

7.0

2000

6.9

2015

8.7

2016

8.3

1995

6.4

2018

8.2

2009

7.7

1989

7.4

2013

7.1

2024

8.7

2019

8.7

2016

7.6

2001

7.6

2019

6.2

2004

8.1

2019

7.2

2018

7.1