They aren't as accurate. Sam has told us this. Monthly includes all institution and retail. Weekly just have the retail numbers I believe. I'll be quite now eat some popcorn and enjoy this show lol. On your marks get set........ GOOOOOO!!!! :)
"Weekly numbers are not as accurate as the monthly" ... No weekly are accurate as monthly, but: - sum of weeklies (retail) isn't equal with monthly (retail), it could be equal in February only ... which is very rarely (last time was in 2014 and the next will be in 2025 - institutional is available on a monthly basis only
Best, G
ps.: I calculate the monthly (retail) based on weekly (retail) ... meanwhile I am close always it wasn't exactly equal with official monthly # in any month