1999

7.6

2004

6.3

1973

7.0

1945

7.7

2003

6.0

1996

6.8

2007

6.9

1976

3.0

2000

7.2

2009

5.6

1991

6.4

2009

6.4

1952

6.4

1956

6.1

1976

5.2

1984

6.3

1936

7.0

1942

6.6

2003

7.2

2017

0.0