Cohorts in Marketing. Similar to demographics, cohorts use quantifiable descriptors to identify target markets. Demographics, however, are the quantifiable descriptors themselves, such as the aforementioned age and household income.
The highest peaks are over 2,000 m (6,600 ft). Beijing Municipality consists of six city districts (previously eight, see Xuanwu and Chongwen), eight suburban districts and two rural counties. It covers a total area of 16,807.8 km2 (6,489.5 sq mi).
These districts, which contain nearly all of the remaining hutong (see photo above) residences grew only 2.2 percent. At 61,000 people per square mile (23,500 people per square kilometer), inner Beijing approaches the population density of Manhattan or the Ville de Paris.