Notes. We report, for each flash episode, the mass of the WD at the beginning of the cycle (M_WD in M_⊙), the orbital period at the subsequent onset of mass accretion (Per., in minute), the mass accreted between two successive flashes (ΔM_acc in 10⁻² M_⊙), the mass of the He-rich zone with X(⁴He) > 0.1 ($\mathrm{\Delta }{M}_{\mathrm{He}}^{\mathrm{pk}}$ in 10⁻² M_⊙), the mass lost during the flash-driven RLOF (ΔM_lost in 10⁻² M_⊙), the ignition density for He burning (ρ_He in 10⁵ g cm⁻³), the maximum temperature ($T_{\mathrm{He}}^{\mathit{max}}$ in 10⁸ K) and maximum luminosity ($L_{\mathrm{He}}^{\mathit{max}}$ in 10¹⁰ L_⊙) attained during the He-flash, and the retention efficiency defined as $\eta =1-\frac{\mathrm{\Delta }{M}_{\mathrm{lost}}}{\mathrm{\Delta }{M}_{\mathrm{acc}}}$.