1.1 (04/1974 - 07/1979)

1.3 (08/1979 - 07/1980)

1.5 (08/1977 - 07/1980)

1.5 (02/1974 - 12/1975)

1.5 (02/1974 - 08/1975)

1.5 (02/1974 - 12/1977)

1.6 (08/1975 - 07/1979)

1.6 (08/1975 - 07/1980)

1.6 (06/1976 - 07/1980)