2005

4.8

1954

7.3

1945

6.2

1941

7.1

1963

7.2

1947

6.6

2011

5.3

1922

1.0

2015

6.9

1986

3.0

2006

4.9

2010

6.1

2004

3.8

2010

6.4

1951

5.9

1934

4.6

1964

7.0

2017

7.9

1997

6.5

1945

4.2