Google just lauched their beta Google Trends site. It may interest some people to see the relative growth of Drupal. Unfortunate, there's no markers or numbers, so its hard to quantify what the graphs actually mean.
Here is the website:
http://www.google.com/trends?q=drupal&ctab=1&date=all&geo=all
You can compare with the other CMSs too, like this:
http://www.google.com/trends?q=drupal%2C+php-nuke%2C+joomla%2C+Typo3%2C+...
Of course this popularity contest really doesn't mean anything, I'll still keep using drupal because its so developer friendly (while not necessarily being admin friendly).
The suprising thing is to see my country (Malaysia) being 4th in the Regional ladder. Wouldn't have guessed it from here.
Anyway, posting this just so you know.