What Does the Demand Data represent?
I see lots of misconceptions about what the Demand Data shows.
There are many comments that say that looking at the Demand Data will give a guide to how much the Visa Bulletin will progress or whether retrogression is likely.
If you understand what the Demand Data is, you will see that neither is possible at the moment.
The figures in the Demand Data represent the number of documentarily qualified cases where a visa request has been made, but the visa has not yet been allocated. It is just a Pending file for cases where a visa request has not, or cannot, be actioned.
Let's understand when a case becomes documentarily qualified, when a visa is requested, and when it is allocated.
(a) For Consular Processed cases, a case becomes documentarily qualified when NVC requests a visa after Packet 4 information has been received and the interview date is set.
Between that time and when, the interview actually takes place, the visa is pending and adds one to the Demand Data total.
If the interview is successful, then the visa is consumed. If the interview is not successful, it is returned to the pool. In both cases, the Demand Data total is reduced by one.
(b) For AOS cases, a case becomes documentarily qualified when USCIS adjudicate and approve the I-485 case. At this point they request a visa from DOS.
Only if the visa can not be immediately allocated, because the PD is not Current, does that request become part of the Demand Data and the total rises by one.
If the PD is Current, which it is for all EB2-IC I-485 cases in the system at the moment, the visa is allocated and used immediately. The Demand Data total remains unchanged.
For all the new applications that USCIS have received since October 2011, with an average processing time of 4-6 months, virtually none will have reached the stage of being adjudicated. For those few that have (such as Veni's), the visa request was granted immediately because the PD was Current, leaving the Demand Data total unchanged.
Only when Cut Off Dates retrogress can the Demand Data figures for EB2-IC increase.
In this situation, if USCIS request a visa for a case with a PD that is no longer Current, then it will be added to the Demand Data total.
Possibly, the other way that the Demand Data might increase, is if DOS run out of visas for EB2-IC under Quarterly Spillover and stop allocating them.
The few cases shown in the Demand Data at present almost certainly represent Consular Processed cases, where the visa has been pre-allocated, but an interview has not yet taken place.
Look at EB2-ROW. It has always been Current. The maximum amount I have seen from a quick look at past Demand Data is the 130 in the latest version.
When the Demand Data for March 2012 is published, don't expect it to be much different from the February 2012 one. If the dates don't retrogress in the March VB, the April one won't be either.