1934

4.1

1949

7.0

1936

8.3

1939

7.8

1955

7.9

1942

7.0

1937

6.9

1997

7.4

1973

7.1

1953

8.0

2017

4.8

2014

5.9

1992

6.3

1948

8.2

2007

7.6

1954

5.6

1944

4.5

1998

7.1

1994

8.3

1984

8.1