Here is the PERM database segregated among EB2 and EB3 category from July 2007- until Q2 FY 2011. It is "Primary Only" data and does not include any dependents. This data is used for green card calculator with assumption of dependent factor of "2.25". Data is already segregated for Q3-FY 2011 and is used in GC calculator but is currently not available in tabular format. It will be added to this table soon. In meantime, this data will be useful for your reference and calculations.
P.S. - This data is for reference only and should not be copied or represented on any other websites.
These numbers comes on basis of an analysis of PERM data from http://www.flcdatacenter.com/ that was segregated strictly on basis on receipt date (in most case is also priority date for an application).
I am not sure from how long you are following our blog but the approach to come up with these numbers were posted in past in few articles and comments. Here are some of the comments and discussion that outlines them for your reference. I have this data used for our green card calculator assuming 2.25 dependent factor. If you will follow the exercise outlined below you will get this data. We had use this same exercise to come up with number of folks who missed the boat in July 2007 for EB2 and EB3 category.
“Some of the assumptions were made when analyzing the PERM data. To segregate petitions from EB2 and EB3 from the whole lot, "PWD Minimum Wage" was used. Any petition with minimum wage less than $60000 was assumed EB3 and rest were assumed EB2. Please note minimum wage required for the job is different than offered wage. Priority date was assumed as same as Receipt date. For many cases this may differ by 2-3 days. “
"You are right that minimum wages depends on job requirement and may differ from state to state but there is no simple way to separate the data. This was one of our assumptions. Though there is some error to this assumption, but this should give us rough idea about fair distribution and we thought would be a good starting point. State to State error may differ assuming in few states individual with $55000 will also qualify for EB2 category while in others even $70,000 may not. Other example is wages offered at universities and higher education institutes are lower but job requirements still qualify you to EB2 category. All these errors in our assumptions for considering EB3s with higher minimum salary into our EB2 criteria and not considering EB2s from higher education institutes due to lower salary will offset each other. I think in my experience this is the closest assumption I can make to segregate this data. Completing this analysis gives you ratio of EB2:EB3 for India around 70:30 which chimes well with trend in trackitt for PDs after July 2007 “