user63397: I'd like to find a logarithmic graph of the value of BTC vs the simple USD/time graph. Any suggestions of where to find that? 
Thank you! 

user38482: not sure what you mean by logarithmic graph. The time in a logarithmic scale, or the value? On both, there is a "log" button below the graph. And you can export as CSV or JSON:
https://blockchain.info/de/charts/market-price?timespan=all
or alternativly:
https://coinmarketcap.com/currencies/bitcoin/

63397: <p>I'd like to find a logarithmic graph of the value of BTC vs the simple USD/time graph. Any suggestions of where to find that? </p>

<p>Thank you! </p>
 38482: <p>not sure what you mean by logarithmic graph. The time in a logarithmic scale, or the value? On both, there is a "log" button below the graph. And you can export as CSV or JSON:</p>

<p><a href="https://blockchain.info/de/charts/market-price?timespan=all" rel="nofollow noreferrer">https://blockchain.info/de/charts/market-price?timespan=all</a></p>

<p>or alternativly:</p>

<p><a href="https://coinmarketcap.com/currencies/bitcoin/" rel="nofollow noreferrer">https://coinmarketcap.com/currencies/bitcoin/</a></p>
