2008

7.4

1968

6.9

2017

5.9

1989

6.0

2014

4.4

2012

8.0

2010

4.8

2005

8.3

2009

6.8

2007

4.7

6.4

1971

6.4

1969

5.1

2001

8.8

2011

5.5

2003

6.2

2002

8.2

1995

5.7

2011

5.9

2021

8.2