The little data book 2012 is a pocket edition of world development indicators 2012. The 216 country tables in the little data book present the latest available data for World Bank member countries and other economies with populations of more than 30,000. For operational and analytical purposes the World Bank's main criterion for classifying economies is Gross National Income (GNI) per capita. Each economy in the little data book is classified as low income, middle income, or high income. Low-and middle-income economies are sometimes referred to as developing economies. The use of the term is convenient
it is not intended to imply that all economies in the group are experiencing similar development or that other economies have reached a preferred or final stage of development. Classification by income does not necessarily reflect development status. Low-income economies are those with a GNI per capita of ,005 or less in 2010. Middle-income economies are those with a GNI per capita of more than ,005 but less than 2,276. Lower-middle-income and upper-middle income economies are separated at a GNI per capita of ,975. High-income economies are those with a GNI per capita of 2,276 or more.