Spring Cume numbers are stunning

[Garrett Wollman]

<<On Fri, 15 Jul 2011 00:03:08 +0000, "Kevin Vahey" <kvahey@gmail.com> said:

> I am really beginning to wonder how accurate the PPM's are...the
> numbers don't look right

They are accurate for what they measure, to within the limits of
sampling error and the systematic biases inherent in how their sample
is constructed.  That isn't necessarily what you're interested in, but
it's what we've got.

-GAWollman