CleanSock,
The number of ROW-M-P PERM certifications (matter of fact all PERM certifications) per quarter are decreasing over the past year.
You can see FY2010-FY2011 data comparison in post #2553.
Below are PERM certifications for ROW-MP for last 5 quarters
FY2011 - Q1 - 8,023
FY2011 - Q2 - 7,222
FY2011 - Q3 - 5,355
FY2011 - Q4 - 4,542
FY2012 - Q1 - 3,805
I believe, due to low EB2ROW-MP demand CO is able to apply quarterly spillover.