2007

6.3

2018

6.7

2017

6.8

1973

10.0

1959

7.0

1975

5.0

1988

0.0

1991

5.0

2015

0.0

2004

0.0

2019

0.0

2009

5.4

2014

4.4

1996

5.6

1998

5.9

1984

6.0

2008

6.5

1945

5.0

1977

6.4

2014

6.4