Please answer a question about the following article about Brigham Young University:

BYU's social and cultural atmosphere is unique. The high rate of enrollment at the university by members of The Church of Jesus Christ of Latter-day Saints (more than 98 percent) results in an amplification of LDS cultural norms; BYU was ranked by The Princeton Review in 2008 as 14th in the nation for having the happiest students and highest quality of life. However, the quirkiness and sometimes "too nice" culture is often caricatured, for example, in terms of marrying early and being very conservative.

How was BYU ranked by The Princeton Review for having the happiest students and highest quality of life in 2008?
14th in the nation