2 months back, eb3 was 3 months behind eb2 india. This is not linear regression. As i said earlier, there is no shortage of visas this year. Issue is of time and resource capacity. Review of 2012 files and RFE issue, receiving RFE docs, sending those back to immigration officer takes few weeks and i feel CO does not want whatever remaining resources into that activity which may not consume a visa before Sep 30.
Just last checkin with Charlie, he was saying eb1/eb2 will not be able to consume their full quota and eb3 will and many on this forum were talking about eb2 reachiing sep/oct 2009 before oct 2020. Just google predictions of people until yday.