In a unitary system of government, local offices

 In a unitary system of government, all local offices and units are subject to the central authority, which has control over them. The opposite is the federal system, where local units are partially autonomous.
Explanation:
In a unitary system the central government usually gives authority to subnational units and channels policy selections all the way down to them for execution. A majority of nation-states are unitary systems. They vary greatly. ... The ultimate native government in an exceedingly unitary system are subject to a central authority.

1920 census

the census was scheduled for january the 1st, as the government believed that more farmers would be in their homes by that time instead of april. the census did not ask about unemployment, the number of children, and how long was a couple married were not taken into consideration. individuals were considered as residents of the places they normally slept, not the places were they worked at or visited.

2010 census

the census was scheduled for april 1st, 2010. it was the shortest census in history: it only contained 10 questions related to name, age, gender, ethnicity, relationship, and whether the citizen owned a home or rented one. the government launched a website in order to provide the citizens with information regarding the census. there were also "teach census weeks" in schools nationwide.