I was guilty of bringing 8 people "into the truth" doing my pioneer days.
However, the vast number of people I knew had spent their whole life 'in the truth' and never even had a study never mind get somebody to baptism.
Only a very small amount actually convert. Most go through the charade of witnessing with no real effect. At best they manage to have a 'paper round' where they just go round on return visits chatting and delivering the lastest Wt and Awake etc.