http://www.shadowstats.com/alternate_data/inflation-charts http://www.shadowstats.com/alternate_data/inflation-charts and links from that page explain further.

http://www.shadowstats.com/alternate_data/inflation-charts http://www.shadowstats.com/alternate_data/inflation-charts and links from that page explain further. (The difference has been ~5% understated inflation rather than 10 or 5 times as much, but whatever.)