Global Stratification There are many different income groups that make up the world. There is high income, middle, and low income groups. The high income groups average about 10, 000 to 25,000 dollars a year. These include countries such as the United States and Switzerland. The countries in this group perform some sort of specalized work. The middle income groups average about 2,500 to 10,000 annually and account for as much as one-third of the worlds humanity. This group includes countries such as the former Russia, and Eastern Europe. Low income groups, unfortunately are mostly farmers and account for about sixty nations globally. This group