1979

6.0

2016

5.5

2014

4.4

2013

7.3

1996

7.8

2016

4.6

1986

7.2

2013

4.5

2013

6.0

2016

6.8

2014

5.9

1965

6.8

2001

0.0

2014

3.1

2016

5.2

2017

6.7

1978

6.2

2014

5.5

2013

5.3

2014

7.4