That graph doesn't have labelled axes, so it's pretty hard to glean much of anything from it accurately. Assuming blue is Nov 2012-Nov 2013, that means that th

That graph doesn't have labelled axes, so it's pretty hard to glean much of anything from it accurately. Assuming blue is Nov 2012-Nov 2013, that means that the starting point for 6 months ago is roughly 2/3 of the way across the blue. Eyeballing it, the height roughly doubles during that period, which would be consistent with the article. Disclosure: I work for Braintree.