The chart shows the current Lord_Kebun sub count in comparison to the historical
data with number of subscriptions grouped by month and price tier of the sub.
All values are based on the real number of subs shared to the chat, and yet
the calculation of totals requires approximation.
The Unshared column shows an approximate value of the hidden subs that didn't
share their subscription to the chat.
The data for the current month will be incomplete until the new month begins.