What is especially interesting is that if you draw a least-squares fit trendline in the logarithmic price chart here, you get the same (+/- 10%) slope as with the whole of Bitcoin's price appreciation over the 5 years of its existence. Also if you take only 2013 as your data, again, same thing.

Now be my guest and rush to buy bitcoins and not understand that this information is only available because I spent days modelling it.