2004

6.6

2009

4.2

2005

5.5

2003

4.5

2017

7.8

1997

8.0

2016

0.0

2004

6.0

2014

2.0

1963

7.0

2008

4.1

2019

4.5

2017

5.1

2017

7.1

2006

7.5

1974

7.2

1968

7.5

2016

6.4

2017

6.7

2014

5.2