1949

7.1

2004

6.4

1973

4.0

1942

6.2

2013

5.6

1934

5.8

2002

6.3

1982

3.9

1947

7.4

1929

6.0

1947

6.7

2013

5.9

2005

7.3

2016

3.4

1985

6.6

2002

5.5

2005

6.6

1939

6.2

2006

6.3

1936

7.1