1999

6.8

1953

7.9

1992

7.7

2001

7.5

1993

6.7

1952

8.1

1997

7.9

1985

7.2

1946

7.8

1931

8.3

2006

7.0

1925

8.0

1940

7.6

2006

7.1

2006

7.3

2007

6.1

2006

7.3

2017

0.0

2014

4.5

1941

0.0