I don't think those numbers are only for EE. I'm not even sure they are sequential.
My profile is from January 2nd and it's number is E000221xxx.
Supposing they are sequential, and that they are only valid for EE, in 9 days there have been arround 1.800 profiles created, which is not a lot. I don't think there will be more than 6.000 to 10.000 applicants until the draw in January, if there are that many.
MyCIC is used for Tourist Visa and Student Visa applications as well. Maybe the number is relative to all those types of visa.
Anyway, until the first draw we are only speculating
.