Coin Desk put together a very nice presentation that took a look at the year over year growth of Bitcoin
From the article:
In April we announced that CoinDesk would be publishing State of Bitcoin updates on a quarterly basis. Given the positive response we have received since 2014’s first report, we are pleased to release our latest update.
This State of Bitcoin Q2 report focuses on data and events in the second quarter of 2014 through to the present day. Here are some of the highlights.
They put together the following slide share:
