A compilation of the monthly and annual daily relative sunspot number is given for the years 1749 to 1957. Wolf's annual values are recompiled and given, back to 1700 from 1749. Tabular data include monthly, annual, and moving 11-year means and totals. Times of cycle minima and maxima and appearances of first and last spots are indicated. Graphical presentations are given for the annual, 11- and 22-year means, cycle means and cycle totals, and for some monthly and five-monthly means. A check for continuation of a relationship of secular change to cycle length is made.
No takes yet. Share an insight, caveat, or question.
Chernosky et al. (1958) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: