1938

6.5

1941

5.0

1975

0.0

2016

5.3

1993

1.0

2016

6.5

2015

0.0

1902

7.9

1939

7.5

1997

7.1

1997

7.6

1998

6.8

1999

6.8

1953

7.9

2001

7.7

2004

7.3

2007

6.3

1972

6.4

1992

7.7