Via Google Retail Blog, October 2010
My annotated version
The x-axis is time, in monthly increments. The y-axis was not identified. The two footers denoted by labels ONE and TWO in red should be clearly visible if the image is clicked on and viewed full-size.
This is well after the fact, so to speak.The chart legend date is October 2010, the Google Retail Blogger blog post date was October 2010, the post date here is March 2012. Remember, this is for entertainment and curiosity purposes only… Sssssh!
Sssssh! means “hush” or “on the down low” or “sub rosa”. I have not provided a trackback to the Google Retail blog post for obvious reasons.