What about the GNU Free Documentation License: http://www.gnu.org/licenses/fdl.html http://www.gnu.org/licenses/fdl.html IANAL, but this seems to be at least c

What about the GNU Free Documentation License: http://www.gnu.org/licenses/fdl.html http://www.gnu.org/licenses/fdl.html IANAL, but this seems to be at least close to what you are looking for. I do not know exactly what constitutes the difference between a "document" and a "data set" (outside of the physical format"), but I would think that the license could apply to any data set printed on paper, so it could also apply to one in digital format.