1971

4.6

1972

4.5

1988

0.0

1999

5.5

1996

5.8

1982

4.0

1923

0.0

2002

0.0

1922

5.0

1981

6.5

1988

7.0

2017

7.5

2018

0.0

2016

0.0

0.0

1986

4.4

2018

7.4

2003

4.0

1977

6.2

2000

6.0