I take that back. There are indirect ways to measure relative growth in SR's userbase. Look at some forum stats: For whatever reason, there were anomalously high user registrations last August. In July and September there were 3428 and 3665. So ignoring that, there seems to be a 40-100% increase in forum activity based on topics and posts. I also remember about 5000 listings on the market back then and 8000 today. So we can estimate that SR's growth has been between 50-100% since August. Still, the exchange trade volume has increased 10 fold and most of that was in the last 2 months, which is why BTC price has skyrocketd. If SR accounted for 10% of exchange trade volume back then, then it might be 2% today.