These days around 5.5M page views daily and something like 5M unique readers a month, depending on how you try to count them.

pg used to post graphs sometimes using an old Google API where you could supply all the data points in a URL and it would return an image. Edit: like http://chart.apis.google.com/chart?cht=ls&chco=ff7700,000000..., which still works! via https://news.ycombinator.com/item?id=1833276