Thanks all. I just found out you responded--it was in my spam box. The delft site is the best I've seen (although it's hard to navigate, and the data is incomplete). I have to figure out the IP issue. I will put a message into the university of Wisconsin system attorneys, but they are very busy. I think it will fall under fair use. The Nasa data from 1985, and the population has changed since then Americans, for example, have grown a lot heavier!