My friend Sean Tucker recently wrote that of the 32 people who started out with him in his 1st year class at Baptist Theological College only 3 of them are now Pastors in churches. That's 9% of the class! These aren't your ordinary Christians either - these are people who were so convinced of G-d's call on their life that they committed to studying theology and preparing for the pastorate. These aren't the "weddings and funeral" people, or the "attend church once a month" people, or the "attend church weekly" Christians, or even the more involved "we have leadership roles in the church" people. These are the most committed - those who are preparing for a lifetime of service within a church, because they feel called to this as their vocation - and only 9% are currently doing that as Pastors!
I find that shocking...and I'm not pointing fingers at Baptist College either.