Yet, politics has prevented any census from being held in Pakistan in 1991. The last was held in 1981. The four provinces of the country—Punjab, Sindh, the North West Frontier Province and Baluchistan—are strongly suspicious of one another's figures and disagree over the method of conducting a census whose data will be acceptable to them all. The result: outdated figures, conjectures and extrapolations are the foundations on which the country's economic and political planning rest.