I'm applying to a PhD program in Biostatistics. 2 years ago I was member of a team crew hired by the UN to write a report on security. This report was published last year and has my name on it in the Statistics section. This is the link for the summary: 

http://www.undp.org/content/dam/rblac/docs/Research%20and%20Publications/IDH/IDH-AL-ExecutiveSummary.pdf

Should I add it as a publication? I don't want the admissions officer to think that I am forcing it too much.