1966

6.5

1989

6.1

2019

6.1

1990

6.1

2004

7.5

1980

6.4

1993

6.7

1991

2.5

1989

5.0

1930

0.0

1999

5.6

1914

5.3

1928

7.9

1963

6.4

1960

7.1

1977

4.7

1932

7.2

1997

0.0

2002

5.7

1985

3.5