CPM Forum
Highs and Lows => Serial Number Database => Topic started by: Dean on December 31, 2010, 11:00:07 am
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Hi,
While looking at the position pair tables on the SNDB, I noticed that the number of notes represented by the CBN is comparatively less than BAI across the board. Is there a reason for this? Or, does it just mean that BAI is printing more notes than CBN?
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BAI is printing the $5 and $10 notes exclusively and they have a fair share of the $20s. As these are the cheaper notes, larger quantities are available for collectors to thumb through. $1000 gets me two whole bundles of $5 notes and if they're all circulated, I can input 200 notes to the SNDB. That same $1000 will only get me 10 $100s.
In addition, late last year there was a strong effort to search as many $10 notes as one could in hopes of finding a BTT/BTU $10 on $20 error note, or a BTV note. This hugely boosted the number of $10 notes in the SNDB, further tipping the scales in BAI's favour.
Is it an accurate representation of what notes are out in circulation? Maybe not, but it's getting there.
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In other words, $5 and $10 notes are disproportionately overrepresented in the database because these are the denominations people like to search and report for various reasons. If I didn't make an effort to report $20 notes like I have, the imbalance would be even greater. The Bank of Canada estimates that 60% of all notes in circulation are $20 notes, while the SNDB contains only about 32% of this denomination.
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I now make an effort to report all of my $20s every time I go to the bank machine. :)
An odd thing happened to me last week though...I withdrew $300 from an RBC branch in Toronto's Chinatown and when I entered these 15 notes, the SNDB said that 14 out of the 15 notes had already been entered! What are the odds of that?? :o
and yes, the fact that the $5s and $10s are most accessible to the collecting public makes sense.
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Interesting! Sometimes it could do that if you accidentally try to add them twice. If it happens again, you can always send me the serial numbers and I can check to see who entered them and when.
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That's good to know Brent. Thanks!
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I entered these 15 notes, the SNDB said that 14 out of the 15 notes had already been entered! What are the odds of that?? :o
Based on the notes entered in the SNDB would be 1 in 3,698 or if you're talking about all $20 printed as of the latest Charlton would be 1 in 131,873,321
Regards,
MG