The Scottish Household Survey ( SHS) is a continuous sample survey of the population in private residences in Scotland. The survey, started in 1999, is financed by the Scottish Executive. From 1999 to 2006, it was undertaken by a partnership of TNS System Three and Ipsos- MORI Scotland. From 2007 the partnership included the Scottish Centre for Social Research. The aim of the survey is to provide representative information about the composition, characteristics and behaviour of Scottish households, nationally and at Local Authority level. There are no geographical exclusions from the survey; it covers all parts of Scotland, including the Highlands and Islands.