1987

7.4

1998

5.9

1971

6.0

1935

5.0

1997

6.5

1979

7.1

1938

5.2

1981

7.0

1976

6.0

1986

6.5

2005

5.8

2018

10.0

1960

6.2

1998

6.3

1993

7.5

1990

5.6

2019

0.0

2000

4.9

2003

6.0

2006

5.2