Supplementary material: data availability compiling the database and our analytical results

Files available used in this study: (i) "IDP_Neve_Concordia_CRPG _MNHN_GFénisseEtAl_EPSL.xlsx", snow mass compilation from the clean snow at the CONCORDIA station (Dome C, Antarctica) , (ii) "Calibration_of_He_concentration_inFurnace_GFénisseEtAl_EPSL.xlsx", the furnace calibration for He measurements (iii) "HeResults_IDPsMMs_GFénisseEtAl_EPSL.xlsx", the He isotopic compositions and total masses deduced by size range of cosmic dust from the CONCORDIA snow, (iv) "Database_IDPs&MMs_He&Ne_GFénisseEtAl_EPSL.xlsx", exhaustive database containing all published light noble gas data (3He, 4He and 20Ne) measured in IDPs and MMs collected in the stratosphere and Antarctica, (v) "ReferencesTable_3HeETFlux_GFénisseEtAl_EPSL.xlsx", Database of light noble gas measured in Antarctica MMs - This dataset of He vs. MMs mass is used here to convert 3He concentrations in dust abundances.