The daily, monthly and monthly smoothed sunspot numbers
for the past 12 years, and predictions for 12 months ahead.
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The monthly and monthly smoothed sunspot numbers are plotted
for the present cycle and the four latest cycles.
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The north and south components of the monthly
smoothed sunspot number for the present cycle and the latest four cycles.
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Maunder "butterfly" diagram.
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The sunspot number since 1750.
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