ZERO.
There are a vast number who spoke with Him while He was on earth, each being an eyewitness, and told others about Him.
You clearly don't understand the culture at the time. You don't understand what people gave up to make an open statement of faith in Christ.
This was no childish word game of gotcha. It meant meant being ostracized by the Temple rulers and family and being stripped of land and possessions, and death for their relationship.
"Every person in the Roman Empire, no matter what their religion, was supposed to honor the Roman emperor as a god. If they would do that—once a year burn a little incense in front of a statue and say, “Caesar is god!”—they were okay and could go on home and mind their own business for another year.
But, of course, Christians refused to do this. They knew there was only one God, and to say anything or anyone else was a god would be a betrayal of their friendship with God. When they stood true and when they refused to honor false gods or the emperor as a god, the Christians got into trouble. Big trouble.
They were put in jail—dark, terrible dungeons. They were sent into exile to desolate islands where they were forced to work in mines. And worst of all, if they were really stubborn and still wouldn’t deny their friendship with Jesus, they were put to death."
https://www.loyolapress.com/our-catholic-faith/saints/saints-stories-for-all-ages/early-christian-martyrs
"In his “Dialogue with Trypho” (cx), the apologist, after alluding to the fortitude of his brethren in religion, adds, “for it is plain that, though beheaded, and crucified, and thrown to wild beasts, and chains, and fire, and all other kinds of torture, we do not give up our confession; but, the more such things happen, the more do others in larger numbers become faithful. . . . Every Christian has been driven out not only from his own property, but even from the whole world; for you permit no Christian to live.” Tertullian also, writing towards the end of the second century, frequently alludes to the terrible conditions under which Christians existed(“Ad martyres”, “Apologia”, “Ad Nationes”, etc.): death and torture were ever present possibilities."
http://www.primeroscristianos.com/en/christian-martyrs-in-the-roman-empire/