SpamCop recently removed such details from their *web pages* due to
spammers using it to figure out which email addresses are spam traps
and to stop spamming when they are close to being listed.
Publishing order-of-magnitude numbers (log based) would certainly
help reduce the abuse issue, but it is still rapidly changing
information which will cache poorly.
Why do you want any details here?
The biggest variable in the data set is the trustworthiness of the provider
and the variation across providers. Unless you assume that you will get all
your information from a single source there will be major differences in the
significance of the data they provide.
For example provider A says that Carol has sent 25 spam to its spam trap,
provider B says that Doug has done the same at its spam trap.
This could mean that Carol and Doug are both equally bad spammers or maybe A
has a hundred times the number of spam traps as B and so Doug is actually
sending out 100 times as much spam. Or maybe Carol is a mom and pop ISP and
Doug is the size of AOL so it is not surprising that there are that number
of spams sent...
Let the provider provide what information they can, provided that the
information given is at least monotonic (A > B and B > C => A > C) it will
be easy to make sense of it with spam filters.
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