In 2020, there were 17,916 Subclass 100 visas finalised.
5,573 of these were processed overseas, with 12,343 processed in Australia.
The numbers processed in Australia were:
- 12,157 in Brisbane
- 181 in Melbourne
- about 5 in Perth.
From those numbers, I am assuming that the subclass 100s that were finalised overseas, were finalised at the same time as the 309, often called a ‘double grant’. Those with a long relationship, where they effectively skip the temporary partner visa section.
Those finalised in Australia would have been the standard ones that began processing 24 months after the 309 was applied for.