Ascertained for persons 14 years of age and over from replies to several questions relating to work activity and status during the reference week. These questions were: Did this person work at any time last week (include part-time work such as Saturday job or helping without pay in family business or farm and active duty in the Armed Forces; exclude housework, school work, or volunteer work)? How many hours did he work last week (at all jobs)? Does this person have a job or business from which he was temporarily absent either because of illness, vacation, labor dispute, etc., or because he was on layoff last week? Has he been looking for work during the past four weeks, and if so, was there any reason why he could not take a job last week?

In the 1960 census, selected tabulations were prepared for the Puerto Rican population in areas outside the five Southwestern States where Spanish surname population was identified.

In the 1970 census, the Spanish-American population is defined differently according to the sample a person is enumerated in and his State of residence. All tabulations except those for 5-percent data are based upon a 15-percent sample, defined as follows:

a. In New York, New Jersey and Pennsylvania, persons of Puerto Rican stock , (See 61.131 above).

b. In the five southwestern States (Arizona, California, Colorado, New Mexico, and Texas), persons of Spanish language (see 67.1 below) or persons not of Spanish language but of Spanish surname identified by matching with a list of about 8,000 such names.

c. In the remaining States, persons of Spanish language . (See 67.1 below.)

Tabulations of 5-percent data are for persons who report Spanish origin or descent including Mexican, Puerto Rican, Cuban, Central or South American, and other Spanish. Spanish origin or decent is ascertained by means of a 5-percent sample question new with the 1970 census.