Please answer a question about the following article about Copyright infringement:

In a study published in the Journal of Behavioural and Experimental Economics, and reported on in early May 2014, researchers from the University of Portsmouth in the UK discussed findings from examining the illegal downloading behavior of 6,000 Finnish people, aged seven to 84. The list of reasons for downloading given by the study respondents included money saving; the ability to access material not on general release, or before it was released; and assisting artists to avoid involvement with record companies and movie studios.

How many people were part of the study?
6,000