Most scholars do not view the racial labels and hierarchical ordering as a rigid or official "system of castes,"[3] since there was considerable fluidity in the designations.
"In the [colonial Mexican] censuses of white/mestizo households, provisions were made to keep accurate records of castizos.
"[5] In the 1778 census that was carried out in the territory of present-day Argentina during the mandate of King Carlos III of Spain, the castizos were counted as whites along with the criollos.
In total there were 69,804 whites, which represented 37.54% of the population, this census was carried out by Viceroy Juan José de Vértiz y Salcedo.
On this consideration is based the common estimation of descent from a union of Indian and European or creole Spaniard.