2015

8.1

2020

5.8

1989

9.2

2001

6.2

2018

7.2

2019

10.0

2005

7.8

2011

5.7

2006

9.8

2014

7.3

2015

7.9

1999

9.1

1992

5.2

2004

6.5

2006

7.0

2002

6.0

2012

7.7

2014

7.7

2011

5.2

2011

6.2