Behold, below is the March 31 - April 1 posting of the SILSO plot of Estimated International Sunspot Numbers (EISN).
Scientists are told not to tamper with data, but statisticians at Brussels are eliminating any outliers (extremely high and low values), which skew the data. Shadows in the graph dated March 31, 2017 are the range of data with outliers already eliminated. However, in the first few hours of the new month, Brussels administrators make all their changes to the previous month data accepting the data once rejected as too high, while rejecting the low data. This is called tampering. It is not scientific. Why beg scientists worldwide to send in data only to reject it in favor of that observed or desired at Brussels by using individualized "k" factors.
I estimate, upon comparing the differences, that there is a two-point average disparity in the two plots. In other words, instead of an estimated international sunspot number hovering around 16 as displayed in the March 2017 plot, the International Sunspot Number will be approximately 18.
For a comparison, see the plots for March 5, 2017 --
The original plot shows an EISN of 7 with a range as seen in the shadows of 1 to 13, while the ISN given on the April 1 plot for March 5 is almost 15 (an outlier even higher than that given in the range).