There are content changes in the Census 2006 profile tables, the National Household Survey profile tables, and the Census 2016 profile tables. Of note, for 2011 and 2016, 1. the variables changed order significantly. 2. Statistics Canada added income deciles. 3. countries of birth were reclassified reflecting demographic changes 4. housing suitability variables were added. and for 2011, in particular, 1. the Census profile table is 100% coverage, while the NHS profile table is 25% coverage 2. the response rate for the NHS 2011 was much lower resulting in much more suppressed DA data. Please see csv table 2011NHS_DA_response_rates which shows the number of DA's with their global non response rates (GNRs), population totals, and suppression (no values lower than 10), and random rounding (rounding base of 5). 3. All DA's with a global non response rate (GNR) greater than 50% have been suppressed. Here are further official disclosure notes for the NHS 2011 Profile Notes: 2011 NHS Semi-custom Profile for Canada, Provinces, Territories, Census Divisions, Census Subdivisions and Dissemination Areas , National Household Survey, 2011 (all GNRs) Immigration and Ethnocultural Diversity, Aboriginal Peoples, Education and Labour, Mobility and Migration, and Income and Housing. Release 3 - 2013/09/11 Note: Confidentiality disclosure control for the National Household Survey (NHS) Disclosure control rules have been applied to data tables available from the National Household Survey (NHS). The number of actual records used to derive any number in a table must meet a minimum criterion. For a table cell where this criterion is not met, the number is replaced by a zero. Due to this disclosure control, subtotals will not necessarily aggregate to the total. As well, users should note that random rounding has also been applied to the data. Note: The 2011 National Household Survey (NHS) estimates - quality indicators For the 2011 National Household Survey (NHS) estimates, the global non-response rate (GNR) is used as an indicator of data quality. This indicator combines complete non-response (household) and partial non-response (question) into a single rate. The value of the GNR is presented to users. A smaller GNR indicates a lower risk of non-response bias and as a result, lower risk of inaccuracy. The threshold used for estimates' suppression is a GNR of 50% or more. For more information, please refer to the National Household Survey User Guide, 2011. Note: Citizenship and immigration data on Indian reserves and Indian settlements. Persons living on Indian reserves and Indian settlements who were enumerated with the 2011 NHS N2 (on-reserve) questionnaire were not asked the questions on citizenship (Question 10), landed immigrant status (Question 11) and year of immigration (Question 12). Consequently, citizenship, landed immigrant status and year of immigration data are not available for Indian reserves and Indian settlements at census subdivision and lower levels of geography where the majority of the population was enumerated with the N2 questionnaire, rather than with the N1 questionnaire which was administered to the off-reserve population. Citizenship and immigration data are, however, included in the totals for larger geographic areas, such as census divisions and provinces. For more information on citizenship and immigration data on Indian reserves and Indian settlements, see the Data Quality and Confidentiality Standards and Guidelines for the National Household Survey. Note: Comparability of low-income estimates Low-income estimates from the 2011 National Household Survey (NHS) compared to previous censuses show markedly different trends than those derived from other surveys and administrative data such as the Survey of Labour and Income Dynamics (SLID) or the T1 Family File (T1FF). Data to support quality estimates of low-income trends require a stable methodology over time that has similar response patterns. With the new methodology of the NHS, estimates of low income are not comparable to the Census-based estimates produced in the past. Previous census income releases compared low-income rates over time using the low-income cut-off (LICO). Given the lack of comparability of the trends and to prevent misleading conclusions arising from comparisons of LICO estimates from the NHS with earlier censuses, estimates of low-income based on LICO are not available as a standard product from the NHS. They are available upon request. Analysis of the NHS estimates suggests that it is valid to compare low-income estimates for different sub-populations within the NHS (that is, for different geographic areas or demographic groups). While many low-income measures, including the LICO, are well suited to the analysis of trends in low income, the after-tax Low Income Measure (LIM-AT) is better suited to the analysis of low income in the NHS because the threshold level of income below which one is considered to have low income is itself derived from the households that responded to the survey. Note: Condition of dwelling The 2011 National Household Survey (NHS) estimate for the percentage of dwellings requiring major repair in Nunavut was higher than the comparable rate in the 2009/2010 Nunavut Housing Needs Survey. For provinces, other territories and Canada, the percentage of dwellings requiring major repairs in the NHS was not statistically different when compared to other surveys. For more information, please consult the Housing Reference Guide, National Household Survey, Catalogue no. 99-014-X2011007. Note: Housing tenure The 2011 National Household Survey (NHS) estimate for homeownership in Alberta was statistically higher than the comparable rate in the 2010 Survey of Labour Income Dynamics (SLID). The 2011 NHS estimate of the homeownership rate for other provinces and for Canada was not statistically different when compared to the 2010 SLID. For more information, please consult the Housing Reference Guide, National Household Survey, Catalogue no. 99-014-X2011007. Note: Income suppression and data quality Area suppression is the deletion of all characteristic data for geographic areas with populations below a specified size. Income distributions and related statistics are suppressed if the population in the area, excluding residents in collective dwellings, is less than 250, or if the number of private households is less than 40. Tables with total income, after-tax income or earnings distributions Total income, after-tax income and earnings distributions have been suppressed where the estimated total number of units (persons, families or households) is less than 250. All suppressed cells and associated averages and medians have been replaced with zeros or symbols. In all cases, suppressed data are included in the appropriate higher aggregate subtotals and totals. For information on data quality, refer to the Income Reference Guide, National Household Survey, Catalogue no. 99-014-X2011006. Note: Non-permanent residents and the NHS universe The 2011 National Household Survey (NHS) included information about non-permanent residents in Canada. Non-permanent residents are defined as persons from another country who, at the time of the survey, held a Work or Study Permit or who were refugee claimants, as well as non-Canadian-born family members living in Canada with them. The non-permanent resident population is identified from responses to the citizenship and landed immigrant status questions. Persons who are not Canadian citizens by birth and who answered 'No' to the landed immigrant status question are considered non permanent residents. The inclusion of non-permanent residents in the NHS facilitates comparisons with provincial and territorial statistics (marriages, divorces, births and deaths) which include this population and provides information for planning of services, such as health care, education and employment programs. As well, the inclusion of non-permanent residents brings Canadian practice closer to the United Nations recommendation that long-term residents (persons living in a country for one year or longer) be enumerated. Although every attempt has been made to enumerate non-permanent residents, factors such as language difficulties, the reluctance to complete a government form or to understand the need to participate may have affected the estimate of this population.