The ONS Omnibus Survey, also known as Omnibus, is a regular, multi-purpose survey which was carried out in eight months of the year until April 2005. From this point it has run monthly. It started operating commercially in 1990 and was set up originally to meet the needs of government departments for a survey that used short and simple sets of questions, had greater statistical reliability than private sector omnibus surveys and a properly designed random sample. Now, however, an increasing number of academics are finding it a valuable research tool.