Based upon the data available from orf.at all Austrians will receive their first SARS Cov2 jab by this date:

30.06.2022

This was calculated using a linear extrapolation of the vaccination progress over the last 28 days.
Last updated: 15.12.2021 10:28 (once a day unless something goes wrong) This site is not affiliated with anyone and was only created to take my mind off the fact that a 'wird scho nix sein' person I recently met was tested positive the very next day. Source/Contact/etc.: github
Update: just got tested negative on day 3 after the incident. so: yay!
Update2: second test, 5 days after the incident still negative.
Update3: Just realized that one of the db views was wrong and so was the data. the bad situation just got way worse, sorry about that.

Oh, and see what may happen if you impfst.net.

Disclaimer: It has been brought to my attention that things are not as abundantly clear as I thought they where by describing a minimal set of details and leave figuring out the rest to the reader. So, here's the fine print: An extrapolation is a guess of the future based upon the past that will obviously fail if the future behaves differently than the past (which it most likely will do in this case). You want to do the numbers game? Please be my guest. According to the data, Austria has 8932664 inhabitants. 6496869 got their first jab. That leaves 2435795 still vulnerable. 28 days ago 6151739 had their first shot. Thats 345130 in 28 days or 12326.0714285714 per day. Dividing 2435795 by 12326.0714285714 leaves us with approximately 197 days. Addding this to the date today yields the date above.