There are several communities of people at European level, most of which is EuroBillTracker,[34] that, as a hobby, it keeps track of the euro banknotes that pass through their hands, to keep track and know where they travel or have travelled.[34] The aim is to record as many notes as possible to know details about its spread, like from where and to where they travel in general, follow it up, like where a ticket has been seen in particular, and generate statistics and rankings, for example, in which countries there are more tickets.[34] EuroBillTracker has registered over 155 million notes as of May 2016,[35] worth more than €2.897 billion.[35]