While looking for website uses of chartle.com, I began by trying to import data from an Excel spreadsheet to display a multi-line graph showing the monthly sales of each year. Excel graphs are almost unreadable when sized for the center div of the websites. Couldn’t work it out, but the following graph will present the story of how the market has changed fairly well.
When viewed on chartle.com, the bar sections are clickable and pop up a balloon with the actual number. Need to try to find out how to make that function carry over to the websites.