| Note code | Note |
|---|---|
| 1 | The original ASFRs (by 5-year age groups) were calculated as a summation of the ASFRs of each single age. The original numbers were divided by 5 in the HFC files to provide an average rate over the 5-age interval. |
| 2 | Values less than 0.0005, provided as "missing data" in the original source, were replaced by '0'. |
| 3 | Statistical office reports that these are provisional data. |
| 4 | For the birth orders 3 and 4, negligible negative values in the original source were replaced by '0'. |
| 5 | Data pertain to the territory of Eastern Germany, including the entire city of Berlin. |
| 6 | Data pertain to the territory of Western Germany, excluding West Berlin. |
| 7 | Statistical office reports that births to mothers below age 15 are included in the age group 15-19. |
| 8 | Data refer to the territory of the former Federal Republic of Germany (including West Berlin). |
| 9 | Statistical office reports that the ASFRs were revised using population estimates based on the census data. |
| 10 | Quality of these data raises some concerns. Please use them with extra caution. |
| 11 | Data holder reports that the ASFRs have been estimated from census or survey data. |
| 12 | Data refer to the territory of the former German Democratic Republic (including East Berlin). |
| 13 | The value in the original data source was considered as a misprint. The error was corrected by the HFC team. |
| 14 | The values of the ASFRs for all birth orders combined were calculated as a summation of the ASFRs by birth order by the HFC team in agreement with the data provider. |
| 15 | The calendar year begins on the 1st of November of the previous year and ends on the 31st of October of the current year. |
| 16 | The calendar year begins on the 1st of October of the previous year and ends on the 30th of September of the current year. |
| 17 | Quebec province was included in the estimation of the ASFRs for 1921 . |
| 18 | The values of the ASFRs for birth order 5+ were calculated by the HFC team based on the original data. |
| 19 | Data for 1950 and 1955 refer to the territory of the former Federal Republic of Germany, excluding Saarland and Berlin. |
| 20 | Data refer to the territory of the Republic of Serbia including Kosovo and Metohia. |
| 21 | Data refer to the territory of the Republic of Serbia excluding Kosovo and Metohia. |
| 22 | Excluding the Autonomous Republic of Crimea, the city of Sevastopol and some other parts of eastern Ukraine. |
| 23 | Rates are for the period 1-36 months prior to interview. |
| 24 | Statistical office reports that these are provisional data. In 2013, live-births that occurred outside of Romania were not included in the calculation of the fertility rates. For this reason, data are not comparable with the previous years. |
| 25 | Data pertain to the territory of Eastern Germany, excluding East Berlin. |
| 26 | The fertility rates since 1992 were calculated from the number of live-births to mothers with permanent residence in Romania, and from the permanent resident population, estimated from the final results of the Population Census 2011. |
| 27 | Excluding the Autonomous Republic of Crimea, the city of Sevastopol and Donetsk and Luhansk regions. |
| 28 | Excluding Agalega and St. Brandon. |
| 29 | The fertility rates were calculated from the number of live-births not including live-births that occurred abroad and were registered in Romania, and from the usual resident population, estimated from the final results of the Population Census 2011. |
| 30 | Rates are for the period 5years prior to interview. |
| 31 | Statistical office reports that these are provisional data. In 2014 only the live births having their usual residence in Romania were considered. |
| 32 | Birth data were revised according to the NIS Revision Calendar. |
| 33 | Birth data were revised with updated administrative records. |
| 34 | It is reported that using population estimates calculated excluding migration. |
| 35 | Statistical office reports that data do not cover territories of Abkhazian Autonomous Republic and Tskhinvali region. |
| 36 | Uses census data on usually resident population. |
| 37 | Statistical Office reports that these revised indicators are based on revised population with usual residence. |
| 38 | Based on estimates of usually resident population. |
| 39 | Russia within the boundaries until March 17, 2014 |
| 40 | The 2002-2003 IDHS did not include Nanggroe Aceh Darussalam, Maluku, North Maluku ans Papua provinces |
| 41 | Using population estimates rebased on Census 2022 which has been adjusted for undercounts |