I am at the point where I am inputting lots of data into form z so it is hard to really get an animation until all the objects are in there to animate. Here is a quick screen shot of the data for 2002 layered over the data for 2001.

I'm not sure if I should leave all the data the same color so that the main focus is on the height increase, or if I should have each year's data in a different color as seen above?

Here's a quick animation of the 2001 data appearing:

More to come as the day goes on....