Fair Enough.
No scientific study was done on the number of engagments. I was taking very rough aprox numbers from Yehiva HS/ Bais Yackov HS graduates (not chassidishe or Modern Orthodox) I should have made that clearer in my post.
My apologies
In any event. That’s makes it all them more clearer that shadchanim aren’t the ones making the majority of shidduchim.