1998

7.4

2003

5.9

2017

8.0

1939

0.0

1917

0.0

1917

5.0

1996

6.1

1957

6.5

1989

7.2

1986

7.0

1996

7.2

1989

7.2

1993

6.9

1972

2.6

1978

6.6

1930

5.0

1985

2.7

1975

0.0

1988

7.3

1987

6.7