2007

6.5

2000

7.4

1994

7.3

2006

7.2

1960

6.7

1952

4.0

1965

6.3

2003

7.0

1993

7.8

2014

5.6

2009

5.3

2011

6.4

2017

3.0

1967

8.2

1980

7.0

2013

10.0

2016

10.0

2012

10.0

1963

0.0

2018

7.4