192. Item 21. Make entry by checking "Yes" or "No."-Check "Yes" in item 21 for all persons on the sample lines who were living in this same house a year before the date of enumeration. Check "No" for all persons on the sample lines who moved from one structure to another structure.

193. Apartment building.-Check "Yes" for persons who moved from one apartment to another in the same apartment building during the past year, since they remained in the same structure. Check "No" for persons who moved from one apartment building or house to another.

194. Trailer.-Check "Yes" for persons living in a trailer which was parked in the same parking lot or trailer camp as a year ago, even though they were not in the same parking space. Check "No" for persons living in the same trailer but whose trailer was located, a year ago, at a different mailing address, parking lot, or trailer camp.