step,listings_remaining,dropped
S0 all listings in snapshot,273265,0
− kind != auto,271992,1273
− VIN duplicate (non-canonical),259133,12859
"− model year outside [2005,2026] or missing",256651,2482
"− mileage outside [1000,400000] km or missing",249958,6693
"− entry price outside [2000,250000] $ or missing/placeholder",241321,8637
− make or model missing,241298,23
− uid identity collision,241297,1
− sampled portal (autotrader/cargurus) or private marketplace (kijiji),136393,104904
− flickering/failed connector or small portal,128144,8249
− oscillating price path,128091,53
− left-censored stock (day 1 or source start-up day),80856,47235