Homelessness is the condition of people without a regular dwelling. People who are homeless are most often unable to acquire and maintain regular, safe, secure, and adequate housing, or lack "fixed, regular, and adequate night-time residence." The legal definition of "homeless" varies from country to country, or among different jurisdictions in the same country or region.[dubious – discuss] The term homeless may also include people whose primary night-time residence is in a homeless shelter, a warming center, a domestic violence shelter, a vehicle (including recreational vehicles and campers), cardboard boxes, a tent, tarpaulins, or other ad hoc housing situations. American Government homeless enumeration studies also include persons who sleep in a public or private place not designed for use as a regular sleeping accommodation for human beings. There are a number of organizations who provide provisions for the homeless for example, The Salvation Army.An estimated 100 million people worldwide were homeless in 2005. In western countries, the large majority of homeless are men (75–80%), with single males particularly overrepresented.Most countries provide a variety of services to assist homeless people. They often provide food, shelter and clothing and may be organized and run by community organizations (often with the help of volunteers) or by government departments. These programs may be supported by government, charities, churches and individual donors. Many cities also have street newspapers, which are publications designed to provide employment opportunity to homeless people. While some homeless have jobs, some must seek other methods to make a living. Begging or panhandling is one option, but is becoming increasingly illegal in many cities.