user6721: I'm interested in a comparison between different blockchains and payment networks.
Bitcoin has a block time of around 10 minutes, so there should be roughly 52,560 blocks in one year. However, the number of transactions per block varies.
Is the number of BTC transactions that happened in 2019 documented somewhere?
(Extra question: Is the volume in BTC or even USD at the time of the trade available?)

user5406: There were 119,783,647 Bitcoin transactions confirmed in 2019. Note that many Bitcoin transactions perform multiple payments at once.
Methodology:

Use the Blockchair block explorer to search for Bitcoin transactions between the dates 2019-01-01 and 2019-12-31 inclusive.
Read number of results for the query at the bottom of the result page in the "load more" link, add ten for the results presented on the first page:


The first block in 2019 was 556,459 and the last block was 610,690. So there were 2208.7 txs per block in average. I didn't check whether some blocks might have had funky timestamps that would have caused them to be incorrectly counted as out of the year.

6721: <p>I'm interested in a comparison between different blockchains and payment networks.</p>
<p>Bitcoin has a block time of around 10 minutes, so there should be roughly 52,560 blocks in one year. However, the number of transactions per block varies.</p>
<p>Is the number of BTC transactions that happened in 2019 documented somewhere?</p>
<p>(Extra question: Is the volume in BTC or even USD at the time of the trade available?)</p>
 5406: <p>There were 119,783,647 Bitcoin transactions confirmed in 2019. Note that many Bitcoin transactions perform <a href="https://transactionfee.info/charts/payments-per-transaction/" rel="nofollow noreferrer">multiple payments</a> at once.</p>
<p>Methodology:</p>
<ol>
<li>Use the Blockchair block explorer to search for <a href="https://blockchair.com/bitcoin/transactions?q=time(2019-01-01..2019-12-31)&amp;s=id(asc)#" rel="nofollow noreferrer">Bitcoin transactions between the dates 2019-01-01 and 2019-12-31</a> inclusive.</li>
<li>Read number of results for the query at the bottom of the result page in the &quot;load more&quot; link, add ten for the results presented on the first page:<br />
<a href="https://i.stack.imgur.com/RJBIg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RJBIg.png" alt="&quot;load more&quot; link under search result" /></a></li>
</ol>
<p>The first block in 2019 was 556,459 and the last block was 610,690. So there were 2208.7 txs per block in average. I didn't check whether some blocks might have had funky timestamps that would have caused them to be incorrectly counted as out of the year.</p>
