Taken from Joyce Hagar's December 2004 MA column:

"
For those who are interested, below is an age breakdown of the current AMA membership. MA


Younger than 20: 18,520
20-40: 30,693
41-60: 61,317
61-70: 26,057
71 and older: 23,267

"

Unless I am suffering from CRS again, those membership numbers look like a decline from previous ones. I wonder if it is the $ or the rules.