1972

6.5

2008

6.4

1975

1.0

1973

2.3

1978

3.4

1979

3.6

1980

2.0

1974

3.1

1972

5.3

1973

1.0

1978

3.1

1975

2.5

1971

2.5

1971

4.8

1975

3.3

1973

3.6

1974

3.8

1972

2.9

1975

2.8

1981

2.0