• by Joe Mandese  @mp_joemandese, February 13, 2014

Nielsen this morning reported revenues of $5.703 billion for 2013, an increase of 5.5% over 2012. Excluding the impact of its acquisition of Arbitron last year, revenues rose 3.0%.

Most of the growth was attributable to Nielsen’s “Watch” operations, which include media measurement services, which rose 11.2% (4.7% excluding the impact of Arbitron). Nielsen’s “Buy” division, which includes research on consumer purchase behavior, grew only 1.9% last year.

Nielsen ended the year on a stronger note, reporting an 11.8% growth to $1.611 billion during the fourth quarter of 2013, including a whopping 29.7% surge to $708 million in revenues for its “Watch” operations.