The slots for the 2014 FIFA World Cup™ will be as follows: AFC 4.5, CAF 5.0, CONCACAF 3.5, CONMEBOL 4.5, OFC 0.5, UEFA 13.0 and one slot the host Brazil. This is the same distribution of slots as for the 2006 and 2010 FIFA World Cups™. For the play-offs relating to the half slots, a draw will determine how the four confederations involved (AFC, CONCACAF, CONMEBOL and OFC) will pair off. Sufficient time will be allowed between the home and away legs of these play-offs.
The draw will be made in Brazil in July to determine the playoff pairings by confederation, FIFA Secretary General Jerome Valcke said.
Source: USA Today
Adding the differences between the actual allocations and those the Marcuccitti system came up with, UEFA had the most to lose over the last four World Cups: