- Share of the working age population (20-64 years) in total population 2014 (Lorraine: 2013) - Territorial entities: arrondissements (Wallonie), zones d'emploi (Lorraine), Grand Duchy (Luxembourg), Kreise (Saarland, Rheinland-Pfalz) - Statistical data sources: INSEE Grand Est; SPF Economie; Statistisches Landesamt Rheinland-Pfalz; Statistisches Amt Saarland; STATEC. Calculations: OIE/IBA 2016 - Geodata sources: EuroGeographics EuroRegionalMap v9.1 - 2016. Harmonization: SIG-GR / GIS-GR 2016

Administrative entities of the Greater Region (08/2015) - Data source: EuroGeographics EuroRegionalMap v3.0 - 2010

- Population density 2019 (inhabitants per km²), Lorraine: 2017 - Territorial entities: arrondissements (Wallonie), zones d'emploi (Lorraine), cantons (Luxembourg), Kreise (Saarland, Rheinland-Pfalz) - Statistical data sources: Destatis, Eurostat, INSEE, Statbel, STATEC. Harmonization: IBA / OIE 2020 - Geodata sources: GeoBasis-DE / BKG 2017, IGN France 2017, NGI-Belgium 2017, ACT Luxembourg 2017. Harmonization: SIG-GR / GIS-GR 2020

- Number of confirmed cases COVID-19: 15.04.2020 - 08.06.2020 - Confirmed cases per 100.000 inhabitants (population 2019) - Territorial level: Kreise (DE), provinces (BE), country (LU) - Data not available for the departements in Lorraine - Sources COVID-19 data: Ministére de la Santé (LU); Robert Koch-Institut (DE); Sciensano (BE) - Source population data: Eurostat - Geodata sources: ACT Luxembourg 2017, IGN France 2017, GeoBasis-DE / BKG 2017, NGI-Belgium 2017. Harmonization: SIG-GR / GIS-GR 2018

- Cumulative number of deaths caused by COVID-19: 15.04.2020 - 08.06.2020 - Deaths per 1,000,000 inhabitants (population 2019) - Territorial level: Kreise (DE), départements (FR), country (LU) - Data not available for the Walloon provinces - Sources COVID-19 data: Santé publique France - Géodes; Ministére de la Santé (LU); Robert Koch-Institut (DE); Sciensano (BE) - Source population data: Eurostat - Geodata sources: ACT Luxembourg 2017, IGN France 2017, GeoBasis-DE / BKG 2017, NGI-Belgium 2017. Harmonization: SIG-GR / GIS-GR 2018

- Chemical and quantitative status of groundwater bodies - Data sources: SPW-DGO3-DEE 2013; MDDI - Administration de la gestion de l'eau 2015; MUEFF 2015; GDI-SL 2015; Agences de l'eau RM-SN-RMC 2015. Harmonization: IGEAT 2018

Change in working age population (20-64 years) 1999-2012 (Lorraine: 1999-2011, Wallonia: 2000-2012) - Territorial entities: arrondissements (Wallonie), zones d'emploi (Lorraine), Grand Duchy (Luxembourg), Kreise (Saarland, Rheinland-Pfalz) - Statistical data sources: INSEE Lorraine; SPF Economie; STATEC; Statistisches Landesamt Rheinland-Pfalz; Statistisches Amt Saarland. Calculations: OIE/IBA 2014 - Geodata sources: EuroGeographics EuroRegionalMap v3.0 - 2010. Harmonization: SIG-GR / GIS-GR 2014

- Cross-border commuters from Lorraine to Luxembourg at place of residence (arrondissements): 2011-2019 - Territorial entities: arrondissements - Commuting data sources: IGSS 2020. Calculations: OIE/IBA 2020 - Geodata sources: GeoBasis-DE / BKG 2017. Harmonization: SIG-GR / GIS-GR 2020

Change in total population 2000-2013 (zones d'emploi Lorraine: 1999-2011) - Territorial entities: arrondissements (Wallonie), zones d'emploi (Lorraine), cantons (Luxembourg), Kreise (Saarland, Rheinland-Pfalz) - Statistical data sources: INSEE Lorraine; SPF Economie; STATEC; Statistisches Landesamt Rheinland-Pfalz; Statistisches Amt Saarland. Calculations: IBA / OIE 2014 - Geodata sources: EuroGeographics EuroRegionalMap v3.0 - 2010. Harmonization: SIG-GR / GIS-GR 2014

Population density 2007 by aggregated areas (inhabitants per km²) - Territorial entities: municipalities (Wallonie, Saarland), cantons (Lorraine, Luxembourg), Verbandsgemeinden (Rheinland-Pfalz) - Statistical data sources: INSEE Lorraine; IWPEPS; STATEC; Statistisches Landesamt Rheinland-Pfalz; Statistisches Amt Saarland. - Geodata sources: EuroGeographics EuroRegionalMap v3.0 - 2010. Harmonization: SIG-GR / GIS-GR 2012