1989

7.2

1996

6.8

1930

5.0

1932

7.4

1984

0.0

1929

6.5

1973

3.5

1992

7.5

1929

7.5

1966

7.3

1923

5.0

2011

5.7

1958

7.7

1984

8.0

1998

7.3

2003

6.0

1957

8.5

1966

7.7

1989

7.1

1986

7.0