I also found that the bubbles (or peaks, if you would prefer to call them that) seem to occur approximately every 234 days (an observation already mentioned on this forum) - with the minimum time between peaks being 213 days and the maximum time being 235 days. Considering there have been six peaks, that is a very small degree of variability for such a notoriously volatile phenomenon as Bitcoin.
Could you please post the dates of the peaks and how exactly you define a peak?
I simply defined a peak as a new ATH. However, this is assuming the magnitude of the peak that occurred in June 2011 is an outlier in terms of datapoints, but the date at which it occurred aligns with the proceeding peaks. Excluding this June 2011 peak magnitude, the peaks following (Jan and August 2012) could be considered ATHs. It is an assumption, yes, but a valid one (imho) considering the smaller user-base in the early years, and arguably less reliable exchange data.By my count, there have been six peaks as well. However, the number of days between peaks that I've identified has ranged from 99 (2010-11-07 to 2011-02-14) all the way to 664 (2011-06-09 to 2013-04-09).
PS. Cool graph. How did you generate it?
Good old excel.