In 1960 there were 399,000 Amateur stations world wide
In 2000 there were 2,789,720 Amateur stations world wide

How you interpret these numbers depends on how you define
a station, in part. Does it weigh less than 1 lb or not?
Station licenses are not the same as stations, anyway -
I have a license but no station unless you count the halogen
lamps at home. But nobody asked me whether I have a station.

And I won't get into quantity vs quality (feel free to do so).

Derek aa5bt, g3nmx