My understanding is that 50,000 visas are made available for the DV program, but it does not prevent DOS to use some of the additional 5,000 visas normally set aside for NACARA. I am just wondering if there were less and less visas used for NACARA these past few years and that we are getting close each year to the 55,000 visas when adding DV+NACARA (except for the abnormal DV12). In this equation, if NACARA visas are reduced, DV visa numbers increase. Even if it is a small amount, it could easily add up to 5-6%, which would increase the cutoff of those interviewed by the same figure.
The numbers of visas used for NACARA indeed was decreasing in recent years, - from 2009 to 2012 it decreased from 4764 to 2803. However, DV + NACARA was not monotonica
2009 52800
2010 55017 - beyond the limit
2011 54342
2012 37266