dickbaker - 3:24 pm on Dec 18, 2009 (gmt 0)

AnkitMaheshwari, it was definitely due to a change in rankings. Those pages began falling from their new higher spots early this week, and are now back to normal.

The percentage breakdown would make sense. If I have a page that's #6 in the results, it's probably getting 4% click-throughs based on that chart. At #2, it's getting 13%, or three times the click-throughs. That's almost identical to what I saw.