2014

4.5

1992

2.0

1963

7.2

2015

7.1

1950

5.8

1990

5.1

2017

7.4

1994

7.0

2006

6.9

2000

4.3

1987

6.8

1984

5.7

1918

0.0

2003

6.0

2010

8.0

2014

6.8

2009

6.8

2014

7.5

2008

4.9

2017

8.0