Spanish frequency counts

[Michael Ullman]

We are looking for a frequency dictionary/list for Spanish
(preferably on-line or searchable database).
We would prefer counts that distinguish different parts of speech,
and that include
lemma (root) counts as well as surface frequency counts.
Ideally the counts would be based on a large corpus with a variety of
international sources,
not just from one region.

Can anybody recommend any such a frequency list?
We would be interested in suggestions even if they do not fit all
these criteria.

Please email your suggestions to Harriet Wood Bowden at woodh at georgetown.edu

Thanks very much,

Harriet Wood Bowden
Michael Ullman
Georgetown University