2006

8.0

2021

8.2

1990

6.1

2013

5.7

2010

7.1

2011

6.2

2019

6.5

1966

6.1

2016

6.5

2003

5.0

2000

6.1

2004

5.4

2007

7.2

2002

5.2

1993

5.5

2025

6.0

2005

6.0

2009

6.7

2015

5.1

2005

6.3