Fig. 10
Top – N + S for total sunspot areas, the red curve represents four-year (49 months) moving average. Middle – N + S divided by ⟨ N + S ⟩ (moving normalization), the red curve is subsequent four-year moving average. Bottom – the red curve represents N + S (the same as on the middle panel), the blue curve shows the normalized moving average for | N−S |.
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