World Listing is a collection of all the ethnicities of the world identified by the United States' CIA in their World Factbook. Each column represents an ethnicity and the colours represent the countries in which they are stated as being present. The medium sized columns would represent ethnicities present in many countries, "Europeans" or "Asians" for example. The smallest columns are for ethnicities present in only one country. The tallest column is for the label "Other", which many countries use to account for a variety of ethnicities present.