52 Chapter 3 Figure 3.2: Central and Eastern European labour migration as a percentage of the labour force, average 2004-2016 Source: own elaboration based on EU-LFS data Note: countries displayed in a colour not included in the legend indicate no data available As I have created two new indicators, these statistics cannot be crosschecked with other available statistics. In order to provide an idea as to the reliability and accuracy of our indicators for intra-EU labour migration, we also created a foreign-born indicator which is able to be compared with other readily available migration statistics. In Table 3.3, the figure derived from the EU-LFS is compared with data on the percentage of foreign-born from the OECD and Eurostat. Table 3.3 also presents the correlation statistics between the OECD’s foreign-born indicator (2017b) with the one derived from EU-LFS data in the period 2004 to 2016. Eurostat reports slightly smaller estimates for the size of the migrant population versus the OECD. Both Eurostat and the OECD use similar sources for data collection. Eurostat collects information from the national statistics offices of member states who base their statistics on either administrative data, sample survey data, census data, mirror data, mathematical methods or a combination of these data sources (Eurostat, 2019a). The OECD uses four types of sources; these are population registers, residence permits, labour force surveys and censuses.
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