I just added the Browser Statistics add-on to my Firefox browser. On the bottom left corner, it shows the number of kilobytes downloaded for the current page, total number of kilobytes downloaded since the last start of the browser, and number of pages loaded. I’m going to try to log these numbers each day and try to make use of the data (uh, if laziness doesn’t get the best of me). If only there were some automated data logging.
Browser Statistics Firefox Add-on
Life expectancy changes
The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.