1971

7.5

2005

6.7

2014

7.3

2001

7.8

1939

7.6

1974

0.0

1998

5.7

1987

4.0

1984

0.0

2002

7.6

1967

7.3

1972

0.0

1996

6.6

1996

7.1

1971

6.7

1972

6.8

1973

6.9

2016

6.9

1944

7.2

2003

6.2