I am not from Australia, nor have I ever taken part in a ranked vote election, but I have some experience with counting votes in my home town (Berlin, Germany). After an admittedly short look at the Commonwealth Electoral Act, I can find the following: The numbers you are searching are published only after the formal return of the writ, as stated in section 283A:
Within 7 days after the return of the writ for a Senate election for a State or Territory, the Australian Electoral Officer for the State or Territory must publish on the Electoral Commission’s website:
(a) the following identifying information for each formal ballot paper cast in the election:
(i) the Division;
(ii) the vote collection point;
(iii) the batch number and ballot paper number within the batch;
(iv) the full set of marked preferences; and
(b) the distribution of preferences received by each candidate for the State or Territory after each count under section 273 in the election.
(I hope I got this right for different bodies being elected. The act jumps from one election to the other in a manner that makes it difficult to understand which rule applies to all elections, and which only to the House of Representatives or to the Senate, or to state or Commonwealth elections.)
Before that time, geting the results takes the priority. And to find out which candiate has been elected, the full set of preferences on each ballot is an information that is not needed. There are several hundreds of combinations that are possible in ranking votes on a ballot, and to list them all would be a serious burden on the returning officer and the people who do the work of counting. Not to slow them down is given the higher priority.
The Commonwealth Electoral Act, like any other electoral legislation I have ever studied, describes elections in terms of a rigorous process: Every action a person involved takes is described in the order they are taken. For example, section 273 describes how votes for the Senate are to be counted, step by step. The first thing you notice is that at the level of polling stations and divisions, only the first prefered vote is counted, and then the ballots are sealed (subsections 2 and 3). This process excludes local and divisional officers to ever register second or later preferences. Only an Australian Electoral Officer, as described in 273(7), may ascertain more data, and then again only as needed:
Where, for the purposes of the succeeding provisions of this section:
(a) the number of ballot papers or votes in any category is required to be ascertained;
(b) a quota, a transfer value or the order of standing of continuing candidates in a poll is required to be determined; or
(c) a candidate is required to be identified;
the Australian Electoral Officer for the State shall ascertain the number, determine the quota, transfer value or order, or identify the candidate, as the case may be.
The following subsections then describe the steps to be taken in detail. But note that is not the duty of the Returning Officer to ascertain anything beyond the necessary steps at this time. For example, if one candidate has the majority of the vote already after counting the first preference, there is no need to count second preferences, and so it will not be done at this point.
Section 273A states the priorities clearly. While giving to scrutineers the right of access to any counting records (subsection 6) and to ask the officers for any ballot for inspection (subsection 6AA), the returning officer may refuse (subsection 6AB):
(a) the officer must grant the request unless, in the opinion of the Australian Electoral Officer, granting the request would:
(i) unreasonably delay the scrutiny; and
(ii) put at risk the writ for the election being returned before the start of the term of service of the successful candidates;
The purpose of an election is to get a body of legislators that can act in the faith that they have been elected in a fair process and in a time interval that makes sure the election represents the current opinion of the public.
Only after the election is complete, the ballot papers may be looked at in detail.