The latest tablet market update from Chitika Insights makes for bleak reading for makers or tablets that would be iPad rivals. It shows that the iPad accounts for 87% of web browsing from tablets devices.

Kindle Fire is the runner-up and accounts for only 5 impressions for every 100 on an iPad. Nexus tablets are at below 2%. The Microsoft Surface does not even reach 1% – and is just barely ahead of the long-ago discontinued HP Touchpad.

This is just one data point of course, but it’s based on a sampling of tens of millions of tablet impressions on the Chitika ad network during a week in mid December.

It will be interesting to see how these figures look next month, once all the tablets sold over the holidays start to factor in.