Matlab Download Data From Url http://www.govtbl.org/data/upload/dl/dlb-2013.pdf Data Collection and Analysis from the “IASG” Data Collection of U.S. Census Bureau: http://www.census.gov/rta/dpi/dfp.html Data is available under the terms of the Attribution License that we offered to any person who requests it. Acknowledgment We thank the American Association for the Advancement of Science and its representatives for their assistance in providing the data. Footnotes References 1. Zohrzay K, Menko R: Trends in child-rearing with the National Assessment of Environmental Quality in the United States, 1991. Washington, DC: US Environmental Protection Agency. Available online at http://www.epa.gov/ntepress/wsp/id-2988.pdf. 2. C. D. Bittner-Smith H, L. Tregarjou M: Trends in the distribution of the annual mean number of children living in urban neighborhoods. Br J Urban Epidemiol 2000; 10:35–48; doi:10.1093/robers/gr6a0. 3. Heidmann S, U. H., Bittner-Smith H. H, Arsenault N, Smetnik N. Trends in the distribution of number of poor children and children of poor people in urban neighborhoods: a census-derived study. J Epidemiol 1988; 129:29–34; doi:10.1501/HESO0021.. 4. Heidmann SA, Fikret A, Jansen M, Nijpel M, Wotzel G, Bergman M, Vermer F: Public health epidemiology of poverty in the Netherlands. National Bureau of Statistics 1998; 44:1–26; doi:10