Time evolution of the gas surface density Σ_g, gas temperature, and the headwind speed ηv_K in our fiducial disc model. The disc mass is initially 0.1M_⊙ and it decreases to 0.02M_⊙ after 10 Myrs. The disc is shallower then the Minimum Mass Solar Nebula (MMSN, red line) and thus most of its mass resides in its outer parts. The headwind, which determines the maximum radial drift velocity, is not constant throughout the disc, as opposed to the MMSN model, and it gradually decreases during the evolution, facilitating the retention of solids.