1970

7.3

2015

4.7

1959

6.1

2001

7.5

2017

5.0

2009

5.0

2003

5.8

1998

6.8

2007

6.7

2005

10.0

2004

7.0

1964

6.2

2002

0.0

1995

7.0

2017

0.0

2004

6.5

2010

0.0

2007

7.2

2017

9.1

2000

7.0