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I wonder what the percentage would be for 2011-2013. I can remember by heart about 20 blockchains launched on 2011 out of which, as far as I can tell, besides Bitcoin only Namecoin, Ixcoin, and, of course, Litecoin are still a thing. I can't remember any one launched on 2012, and only Dogecoin from 2013.
It is a little curious that they chose to look at 2014 and forward, rather than just give the all-time figure.
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