1976

3.3

2005

3.6

1999

5.2

2013

5.3

1982

4.9

1982

4.9

1995

4.4

2015

4.3

1980

4.8

1976

0.0

1978

5.0

1974

4.8

1990

4.5

2013

5.5

1998

2.3

1975

2.4

1973

5.2

1973

3.5

1967

5.3

1976

0.0