capita GDP, Zimbabwe fared the worst, and that at its current rate of development it would take 190 years for the country to double its per capita GDP. Uncertainty around the indigenisation programme (compulsory acquisition), the perceived lack of a free press, the possibility of abandoning the US dollar as official currency, and political uncertainty following the end of the government of national unity with the MDC as well as power struggles within ZANU-PF have increased concerns that the country's economic situation could further deteriorate. In September 2016 the finance minister identified "low levels of production and the attendant trade gap, insignificant foreign direct investment and lack of access to international finance due to huge arrears" as significant causes for the poor performance of the economy. Zimbabwe came 140 out of 190 ease of doing business report released by the World Bank Group. They were ranked high for ability to get credit (ranked 85) and protecting minority investors (ranked 95). Infrastructure and resources Transportation Zimbabwe has adequate internal transportation and electrical power networks; however, maintenance has been neglected over several years. Poorly paved roads link the major urban and industrial centers, and rail lines managed by the National Railways of Zimbabwe tie it into an extensive central African railroad network with all its neighbours. Energy The Zimbabwe Electricity Supply Authority is responsible for providing the country with electrical energy. Zimbabwe has two larger facilities for the generation of electrical power, the Kariba Dam (owned together with Zambia) and since 1983 by large Hwange Thermal Power Station adjacent to the Hwange coal field. However, total generation capacity does not meet the demand, leading to rolling blackouts. The Hwange station is not capable of using its full capacity due to old age and maintenance neglect. In 2006, crumbling infrastructure and lack of spare parts for generators and coal mining lead to Zimbabwe importing 40% of its power, including 100 megawatts from the Democratic Republic of Congo, 200 megawatts from Mozambique, up to 450 from South Africa, and 300 megawatts from Zambia. In May 2010 the country's generation power was an estimated 940MW against a peak demand of 2500MW. Use of local small scale generators is widespread. Telephone New telephone lines used to be difficult to obtain. With TelOne, however, Zimbabwe has only one fixed line service provider. Cellular phone networks are an alternative. Principal mobile phone operators are Telecel, Net*One, and Econet.