Temporal evolution of the (a) γ and (b) D of the magnetic field from 31 Jan. 1995 to 2 Dec. 2019, considering a moving window that covers two months with a one-day resolution (black solid curves). (a) In the top panel, light blue is used to indicate the γ error, σ_γ, obtained from the linear fit of log(P(k)). (b) In the bottom panel, light blue is used to indicate the reversibility range. The reversibility range results from the application of the HVG algorithm to randomly disordered copies of the data in every window, obtaining the standard deviation σ_rev around the average divergence (in dark blue) computed using the disordered data.