According to page 33 of Nick's book, twenty months instead of eight.

Seriously though, this is a sensational book. Great job, Nick! As the son and grandson of British journalists working for nationals, I have listened endlessly to stories of slipping editorial standards over the years. I'll never forget the day I saw my angry father come home from Fleet Street in the eighties to announce that the editor had decided that Princess Diana would be on the front page every single day of the following week and would the journalists please oblige with stories and pictures...