On May 5, 5:54?pm, wrote:
The following are approximate numbers of US amateurs on the stated
dates, compared to the US population.

A yearly US ham census was posted on KB6NU's ham blog
on 27 December 2006, from KB9UMT. It goes from 1925
to 1965 in 5-year increments, then 1-year increments from
there to 2003. See:

http://kb6nu.com/ham-census/


73, Len AF6AY