EnKF-RAMS inverse modelling estimates of European CO2 fluxes for 2006-2015 as part of the EUROCOM inversion intercomparison; monthly fluxes; 0.5 deg. x 0.5 deg.; NEE prior: RAMS; Anthropogenic emissions: EDGARv3.2 + TNO profiles + BP statistics; Supplementary material for Monteil et al., 2019, DOI