The Bioenergy site mentions that the Chinese agriculture ministry reports new progress in rural biogas use. During its 11th Five-Year Plan, the progress in the "rapid extension of biogas use in rural areas", has produced comprehensive benefits, in terms of increase in farmer incomes and a cleaner rural environment. The Central Government invested in the development of a "biogas service system", where associations, cooperatives, companies, and individuals, can participate, to provide a variety of service modes related to biogas digester construction, equipment installation, accessory supply, and maintenance. As a result, a total of 12.78 million households were installed with biogas digesters, between 2006 and 2010. By the end of 2010, 5,042 sets of medium-and-large-sized biogas facilities are estimated to have been built. The total rural biogas installations reportedly represent 107 per cent of the target in the 11th Five-Year Plan.