1996

4.0

1982

7.6

1974

8.0

1996

7.5

1984

7.3

1949

0.0

1978

6.0

1987

5.0

1955

0.0

1990

6.0

2012

7.5

2003

0.0

1947

0.0

2000

7.4

1978

7.0

1964

7.1

1976

6.8

1997

6.8

2005

5.0

2013

5.0