Many countries report the number of radio licences issued rather than the number of receivers used. This has led to a certain under-enumeration of the number of receivers for those countries or areas where one licence covers the possession of several receivers. The same case applies to the figures supplied for the number of television receivers. Daily calorie and protein supplies. Data refer to energy equivalent of per capita net food supplies available in the country per day.
Food supplies comprise domestic production, imports less exports and changes in stocks.
Net supplies exclude animal feed, seeds, quantities used in food processing and losses in distribution. The food requirement has been estimated on the basis of physiological needs for normal activity and health, taking into consideration environmental temperature, body weights, and age and sex distribution of the population in the various countries or ares, and allowing for wastes at the household level. Population employed in agriculture. The agricultural sector comprises agriculture, forestry, hunting and fishing. Female labour force.