1965

6.9

1987

6.5

1982

5.6

1966

5.5

1992

4.8

1994

4.7

1961

6.7

1989

3.9

1988

5.8

2012

5.0

2002

4.7

1953

4.5

1986

3.8

2014

5.0

1932

6.0

1936

6.3

1981

2.7

1991

0.0

2019

0.0

2021

0.0