1937

3.7

1931

4.7

1948

6.7

1939

0.0

1952

5.0

1936

6.9

1988

7.0

2005

6.9

1995

6.7

1954

8.0

1977

7.3

2002

7.3

1987

7.1

1958

7.8

2020

5.9

2016

6.4

1922

10.0

2006

5.9

2001

6.2

2013

4.3