1976

0.0

1986

7.0

1983

6.6

1966

7.9

1989

4.4

1995

7.3

1969

6.8

1972

6.5

2009

0.0

1957

5.9

2019

10.0

1977

6.6

0.0

1999

3.3

1957

6.4

2011

5.7

1978

6.1

1936

6.9

1951

6.5

1979

5.5