Bitcoin has a tendency to do a bull run when it halves though, so if the price doubles, it wouldn't change. If it more than doubles, it goes up, etc. Also important to know is whether the chart refers to only new production or all sales, which is probably a big difference in Bitcoin, and gold too for that matter. (pretty important for most metals due to recycling)

Also interesting in that case, although probably still pretty small, is when bitcoin is used as money for goods, without dollars or other fiat currencies changing hands, if that is reflected.