How many voice overs in "The Passion of the Christ" do you think Mel Gibson did?

I wrote a hot check for the DVD when it came out in 2004 (and wondered if writing a hot check for “The Passion of the Christ” was a sin…???) We watched it then, then watched it again tonight (2014). Listening rather dispassionately, I couldn’t help but notice many of “The Christs” moans, groans and sighings sounded like Mel Gibson’s in various movies when he’s groaning and moaning, as he is quite frequently.

I can’t imagine an ego like Gibson’s not inserting itself in his own movie in someway, and I wonder if that’s where he did it in this movie?