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<p>3 Does someone have data on how many bounties are not awarded each year?</p>
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<p>Data on bounties is available in the votes table of the database.</p>
<p>The easiest way would be to count the number of bounties that awarded zero answers.</p>
<p>But to figure out the bounties that are half points, I believe this is not easy to see. Possibly you could work it out by doing some bookkeeping and for each user that has awarded bounties you compute how much their reputation score should be and how much the score actually is.</p>
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<p>Alternatively you could create a web crawler that searches the bounties granted by each person.</p>
<p>For instance, the bounty on the specific case of this question is still visible. <a href="https://stats.stackexchange.com/users/285740/noone?tab=bounties&amp;sort=offered">https://stats.stackexchange.com/users/285740/noone?tab=bounties&amp;sort=offered</a></p>
<p>(I wonder whether this is also available in the database, it seems to be not the case. One thing that I am sure about is that the information of the user profiles shows the correct value of bounties granted and awarded, with that I mean that you can see values of 25 being awarded I  the profile of the receiver while the granter has awarded 50 for the same question)</p>
