I guess the signal-to-noise ratio matters.

In the last 3 months I received 700 spam/scam calls to my phone, my wife received about 400. We can't turn off ringing for unknown callers and we're getting mad. A few days ago I vented to one of those call-center people trying to sell me a cheaper power utility for the Nth time, and told her to find another job or something like that; she actually called me back yelling at me that "any job is worth", and yelled at her that I cannot fucking receive sometimes up to 20 calls in a day, sometimes at quite annoying times of the day! It's getting ridiculous.

EDIT: I know not everybody is having the same experience in my country. Some people are only getting a few calls per week; I registered our phones in https://registrodelleopposizioni.it/ and also I'm using android's spam filter which filters out additional hundreds of calls automatically.

EDIT 2: I sometimes wonder if we're being harassed by somebody ; I cannot tell. The voices are often quite similar, but it might be the albanian accent that makes them sound similar.

EDIT 3: caller id numbers are always different