Hi Mango4,
Thanks for the offer of the data you collected.
I don't know if the data you gathered may be of interest to others (perhaps some may chime in here), but the only information that I can think of that may be of interest would be the total number of each of these prefixes you came across and perhaps a range span, as members on this site normally don't enter long-runs of notes in the SNDB as it is too labour intensive.
A lot of collectors look for characteristics that are of interest to them, and not a lot of others. For example we have a collector that specializes in notes with bank stamps, and another that specializes in font size differences in certain issues. These are considered "niche" areas of collecting.
I too have been searching $5 notes, and while I hang on to a few notes from all prefix (at least until it can be determined if it was a full issue), I specifically target signature change-over notes at the time of issue in order to get some in the highest grade I can find. For example the INS prefix that started to circulate a few months ago is split between two signature combinations. I also keep the usual radars, repeaters, ladder notes, etc.
This brings me to a question, if you want to share, why did you pointed out the data about notes ending in double digits?
Cheers,
Breanna