2016

5.0

1985

6.2

1986

6.4

1987

0.0

2016

6.0

1970

5.7

2004

6.4

1956

7.2

2006

4.6

2000

6.3

1994

6.8

1984

5.8

2008

4.0

2016

7.7

2001

5.4

2001

6.9

1980

6.8

2005

4.9

1978

7.1

2014

5.5