Any information (but especially numeric) is going to be absorbed by a user much better and faster if it is presented with a graph or diagram. Don’t even consider putting statics data on your page without a graph!
I will list here a few free tools that allow building dynamic graphs in your projects. All of the tools are very easy to tweak.
This service offers many different choices in various diagram building: linear, circular, columnar, Venn’s diagrams, diffusion diagrams and others. Besides, has many parameters for fine tuning of your graphs
This service is based on DHTML and AJAX. The service allows you to create functional graphs using minimal ammount of scripts on your server.