Upper panel shows, respectively, by the filled dots and open circles, the unsigned values of solar polar fields for the northern and southern hemispheres, obtained from NSO/KP magnetograms, in the latitude ranges 45°–78°, for solar cycles 22–24. Also, overplotted are the solid curves in red and blue showing the smoothed variations of data points for the northern and southern hemispheres, respectively. Lower panel: same for the unsigned values of toroidal fields in the latitude ranges 0°–45°. The smoothed total sunspot number, scaled down by a factor of 25, is shown in solid black curve in the upper panel. The vertical dotted lines demarcate the solar cycle periods.