2018

5.5

2014

6.8

2011

10.0

2004

7.4

1996

4.0

1982

7.6

2005

4.0

1974

8.0

1996

7.5

2003

0.0

1987

7.7

1984

7.3

2015

6.5

1954

6.7

1949

0.0

2007

0.0

2009

3.8

2003

0.0

1979

5.0

1993

0.0