So it says 102 applicants and 67 quota for FY21/22, that means those who are selected enter into a year group. Manning in the Navy is all based on that. They have year groups where they need to hit a certain number and once you enter that year group, you will be performing against that year group basically your entire career. But I will say, just because they have 67 slots available does not necessarily mean they are going to select 67 people. This could be due to the fact of the OCS capacity, or they simply just do not see 67 good applicants they want to commission. Hope this helps