Top row: the period-dependent variation of the spectral fractions of the six MHD modes, i.e., outward/anti-sunward (solid line) and inward/sunward (dashed line) propagating Alfvén modes (green), fast modes (blue), and slow modes (red), as averaged over different distance ranges: 0.180 au–0.185 au (top-left panel), 0.209 au–0.214 au (top-middle panel) and 0.238 au-0.243 au (top-right panel), respectively. Bottom row: the heliocentric distance variation of the spectral fractions of the six MHD modes as averaged over the timescale (period) from 10 to 1000 s. The lime shadow sections correspond to the distance ranges used for the averaging of the intervals in the top row.