1965

5.4

1999

7.0

2007

7.6

1983

6.3

2004

7.4

1972

7.0

2022

5.9

2015

7.0

2015

6.4

2004

6.8

2011

7.1

2009

7.5

2013

7.3

2014

5.4

2014

7.3

2000

6.9

2002

7.2

2008

7.7

2010

0.0

2006

8.2