Normalised values of average parameters corresponding to each subgroup (split according to the ordering parameter V_mc): low V_mc (blue triangle down), middle V_mc (green circle), and high V_mc (red triangle up). Empty symbols are for sheaths and filled symbols for MCs. For each quantity, we use the mean values of all events for the normalisation of each parameter (grey horizontal line). From left to right, the parameters are the means of magnetic field B, bulk velocity V, proton density n_p, proton temperature T_p, plasma beta β, normalised magnetic-fluctuation density rmsBoB (Eq. (1)), absolute magnetic fluctuation rmsB (Eq. (2)), and GCR intensity normalised to the pre-ICME level n_GCR.