Radial extension of the nova shell around RR Pic as a function of the years since the nova eruption. Measurements provided by previous authors are presented in black dots for the equatorial ring and squares for the polar filaments. The new measurements from MUSE data are presented in colours. The best linear model indicates expansion rates of 0.154(1) and 0.225(2) arcsec yr⁻¹ for the equatorial ring and the polar filaments respectively.