RR distribution by type?

["Larson, Matt" <mlarson@verisign.com>]

Hi, folks.

Has anybody ever done or seen a (recent) survey of how various RR types are
distributed "in the wild" in real-world zones?  Ideally, I'd be interested
in a histogram of RR types for the entire name space.  Obviously A and PTR
would be the two most popular, probably followed by CNAME, MX, NS and SOA
(in that order?).  And then all the lesser-used RRs--but what I'm really
wondering is how used some of the less-used really are.

Any data or thoughts would be welcome.

Matt
--
Matt Larson <mlarson@verisign.com>
VeriSign Global Registry Services / www.verisign-grs.com