The randomly selected sample consists of 1,500 adult men (50 percent) and women (50 percent), yielding an overall margin of error of + 2.53 percent at the midrange of the 95 percent confidence level.  The survey was collected using in-person, face to face interviews by trained professional interviewers.  There was a systematic random selection of 75 sample points in different municipalities throughout the country, excluding the municipalities in the previously designated national territories of San Andres and Providencia islands, and in jungle territories/territories of difficult access. 

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