[Dog Gone]

IIRC, one estimate was that there were 300 Americans abducted daily though some claim the abductions have fallen off signficantly in recent months.

Their families apparently don't care, since perhaps one amber alert is issued each week. And the missing victim is usually found in the custody of some non-alien.

[Quix]

There are evidently, according to some experts, thousands of rather unattached folks, homeless folks etc. who disappear yearly without a trace.

But it’s not only the homeless and unattached.

Methinks your research about such statistics is not much better than mine.