has been the subject of much debate because of questions over counting methodology. In 2012, Sheskin and Dashefsky put forward a figure of 6.72 million based on a mixture of local surveys, informed local estimates, and US census data. They qualified their estimate with a concern over double counting and suggested the real figure may lie between 6 and 6.4 million. Drawing on their work, the Steinhardt Social Research Institute released their own estimate of 6.8 million Jews in the United States in 2013. These figures are in contrast to Israeli demographer Sergio Della Pergola's number of 5,425,000, also in 2012. He has called high estimates “implausible” and “unreliable” although he revised the United States Jewish number upward to 5.7 million in subsequent years. This controversy followed a similar debate in 2001 when the National Jewish Population Survey released a United States Jewish estimate as low as 5.2 million only to have serious methodological errors suggested in their survey. In sum, a confidence interval of a million or more people is likely to persist in reporting on the number of Jewish Americans. By country Below is a list of Jewish populations in the world by country. All data below, except the last column, are from the Berman Jewish DataBank at Stanford University in the World Jewish Population (2020) report coordinated by Sergio DellaPergola at the Hebrew University of Jerusalem. The Jewish DataBank figures are primarily based on national censuses combined with trend analysis. Core Jewish population refers to those who consider themselves Jews to the exclusion of all else. Connected Jewish population includes the core Jewish population and additionally those who say they are partly Jewish or that have Jewish background from at least one Jewish parent. Enlarged Jewish population includes the Jewish connected population and those who say they have Jewish background but not a Jewish parent, and all non-Jews living in households with Jews. Eligible Jewish population includes all those eligible for immigration to Israel under its Law of Return. National official population is the Jewish population reported by a national source. Note that the "National" results may not be entirely accurate, as other sources may have conflicting accounts of Jewish populations in some countries. Table pct = percent of total pmp = per million people Remnant and vanished populations The above table represents Jews that number at least a few dozen per country. Reports exist of Jewish