1973

10.0

2007

6.3

2016

7.0

2000

6.8

2003

6.1

2005

8.5

1959

7.0

1975

5.0

2010

1.0

2017

6.0

2013

0.0

2006

6.5

1971

0.0

2001

5.6

1970

7.0

1971

5.2

1995

6.4

1999

0.0

1959

6.0

2007

8.0