Catholic HS Entrance Exam, October 27, 2018

Regarding entrance to a Catholic high school in Nassau or Suffolk County, New York, the deadlines are fast approaching.  Please see the website linked HERE for a list of deadlines and other information about taking the test.  The website includes applications for the exam with or without a request for exceptional treatment "with accommodation." The on-line registration form is linked HERE, the fee $60. It would appear that the registration due date is October 3rd.
---
There are seven Catholic high schools in Nassau County and two in Suffolk County. One entrance exam counts for all. An eighth-grader may apply to three schools.  

---
The CHSEE website this year has changed the round-number enrollment for Chaminade from 1,700 (listed for several past years) to 1,650.
However, Holy Trinity, Hicksville, uses a suspect round-number of 1,000 for enrollment. There is no harm publicizing the exact enrollment as of a specific date. Enrollment per grade level would also be informative.
Kellenberg Memorial in Uniondale reports an enrollment of 2,150, but does not state whether that figure includes grades 6 to 12 or only the high school.
Our Lady of Mercy Academy, Syosset, reports 114 graduates in June, 2018, and an enrollment of 415 young women, both credible numbers.
Sacred Heart Academy, Hempstead, reports an enrollment of 890 young women.
St. Dominic's College Prep HS, Oyster Bay, reports an enrollment of 410.
St. Mary's HS, Manhasset, gives a round-number enrollment of 600.

----

I wonder about the ratio between the number of test-takers and seats available in the nine high schools, especially since we do not know how many eighth-graders paid for the test in 2017.