Now, the most common plates in the movies/documentaries/tv series/music videos, etc... for Buenos Aires (province) & Capital Federal.

First part of the database of registration plates. Now, it's for my province, Santa Fe. The next are for Capital Federal (1964-1994), Buenos Aires (1964/1967-1994), Entre Rios (1967-1994) and the other provinces (1967-1994).

Vehicles registration plates for Santa Fe (1966-1995)

Evolution by the years
1966
1966 S000000
hasta
1966 S058695

1967
1967 S058695
hasta
1967 S071000

1968
1968 S071000
hasta
1968 S090300

1969
1969 S090300
hasta
1969 S103300

1970
1970 S103300
hasta
1970 S122327

1971
1971 S122327
hasta
1971 S178140

1972
1972 S178140
hasta
1972 S240856

1973
1973 S240856
hasta
1973 S313524

1974
1974 S313524
hasta
1974 S347158

1975
1975 S347158
hasta
1975 S365629

1976
1976 S365629
hasta
1976 S374316

1977
1977 S374316
Hasta
1977 S385236

1978
1978 S391915
hasta
1978 S405594

1979
1979 S405594
hasta
1979 S422283

1980
1980 S422283
hasta
1980 S453275

1981
1981 S453275
hasta
1981 S464271

1982
1982 S464271
hasta
1982 S478922

1983
1983 S478922
hasta
1983 S497213

1984
1984 S497213
hasta
1984 S507951

1985
1985 S507951
hasta
1985 S541413

1986 S541413
hasta
1986 S551003

1987
1987 S551003
hasta
1987 S563971

1988
1988 S563971
hasta
1988 S576652

1989
1989 S576652
hasta
1989 S581163

1990
1990 S581163
hasta
1990 S597329

1991
1991 S597329
hasta
1991 S615256

1992
1992 S615256
hasta
1992 S629823

1993
1993 S629823
hasta
1993 S661661

1994
1994 S661661
hasta
1994 S721600*

* last plate in december, 1994.

** Many cars for the period 1900-1967 are re-registered as new cars for 1967. That's a trouble, but not much (just a few in the total of registrations).
** For October/november/december/january/february had a confusion with the year of registration. But not really serious. Typicall for the end of the year, appears mixed plates.
** The number of registration plates for 1976, 1982, 1989 and other years are very low, because the obviuos problems with the economy and other politic issues.
** Remember: the Santa Fe province are the third/fourth in population and the third in the 1967-1994 years. But the local market are reduced (also for the argentinian market in these years).