1971

4.7

1968

4.5

1976

3.0

1983

0.0

2002

5.0

2003

1.5

1978

5.0

1974

4.8

1990

4.7

1970

3.0

2014

6.3

1973

0.0

1976

3.3

2009

5.8

1972

3.2

1976

10.0

1975

5.1

1982

4.9

2013

5.3

2019

7.6