Projection of IPv6 Allocated Prefixes in United States of America

The count of allocated/assigned prefixes by the RIR.
Metric to display: allocated prefixes - announced prefixes - alive prefixes - global routing table - IPv6 web browsers (Google) - IPv6 web browsers (APnic) - IPv6 web browsers (Akamai) - IPv6 web servers
Country to plot:

Predict for day(s) in the future,
based on data from the last days,
using a regression:

In the last ??? days, the IPv6 metric has doubled.

Thanks to Google for their Chart tools, to Erik Kline for his suggestion and to Tom-Alexander for his polynomial regression package.