Informal entrepreneurship data is also collected in five year intervals for manufacturing and services (108 million employed in 2010, of which 35 million in manufacturing). Another source for employment data is the IHDS five yearly household survey, but the latest publicly available data is from 2005. The unorganised sector consists of all incorporated private enterprises owned by individuals or households engaged in the sale and production of goods and services operated on a proprietary or partnership basis and with less than ten workers (or twenty if not using electricity).