1984

5.9

1988

8.0

1990

7.7

1970

0.0

2016

3.5

1982

5.5

1963

0.0

2006

7.8

1982

5.0

2010

6.7

2016

7.7

2015

6.0

2006

6.7

2000

6.4

1959

6.9

1960

6.1

2017

5.8

1965

0.0

2007

6.7

2014

6.2