The largest ethnic group is the native Newars, whose various caste groups combined have a population of 25%. Almost equal in population is the Bahuns with 24%, while the Chhetri population is 18%. Other groups in Kathmandu include the Janajatis, including the Tamang (8%), Magar (4%), Gurung (3%) and Rai (2%). More recently, other hill ethnic groups and caste groups from Terai have come to represent a substantial proportion of the city's population, and there are even around 12,000 Marwadis, mainly merchants.