Two years ago AOL leaked some search engine positioning statistics showing the percentage of clicks received by each search result on a page.

The data showed

That compromised data gave us the following break-down of the percentage of clicks received by each of the top 11 search results:

Rank Percent
1 22.6%
2 6.4%
3 4.5%
4 3.2%
5 2.6%
6 2.1%
7 1.8%
8 1.6%
9 1.5%
10 1.6%
11 0.35%

This shows the extreme value of the number one position and that approximately 50% of the page clicks were going to the ppc activity.

 This can be used to develop a business model for serps investment or ppc activity.