Data itself is not copyrightable.
For instance, demographic counts, weather measurements, phone numbers, chemical structures, currency values, facts about individuals and events, and similar types of factual information may be used without permission.

However, when a creator acts to select, arrange, coordinate, or otherwise creatively transform, organize or analyze data, then the creative elements can be protected by copyright.
While the individual pieces of data used to create a visualization can not be copyrighted, the visualization itself can be protected. Simply displaying the data in a simple table or chart generally does not constitute creative transformation, whereas unique design and display elements may meet the threshold for original work.