Catholic HS entrance exam October 29, 2016

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."
---
There are seven Catholic high schools in Nassau County and three in Suffolk County. One entrance exam counts for all. An eighth-grader may apply to three schools.  

----

I wonder about the ratio between the number of test-takers and seats available in the ten high schools. 
---
The 2016 edition of the Official Catholic Directory gives these enrollment figures:

Our Lady of Mercy Academy, Syosset, 464 girls, 51 teachers.
St. Dominic High School, Oyster Bay, 472 students, 34 teachers.
Bishop McGann-Mercy Diocesan High School, Riverhead, 481 students, 46 teachers.
St. Mary High School, Manhasset, 589 students, 41 teachers.
Sacred Heart Academy, Hempstead, 825 girls (same as 2015), 93 teachers.
Holy Trinity Diocesan High School, Hicksville, 1,022 students, 62 teachers.
Chaminade High School, Mineola, 1,700 boys (same as 2015), 74 teachers.
St. John the Baptist High School, West Islip, 1,700 students, 113 teachers.
St. Anthony High School, South Huntington, 2,400 students, 133 teachers.
Kellenberg Memorial High School, Uniondale, 2,689 students, 131 teachers. (These numbers may include grades 6-8, the Latin School.)
---
Round numbers and repeated numbers may not be accurate. Details of enrollment per grade level would help.