I have had about a year of voice training. I have to admit that I didn't do the homework as much as I should have, but I think it gave me a pretty good idea of what my voice is like. I think they told me that my average when I first went in was between 135hz and 140hz. After about a year of practice, I could do functional phrases with good quality at an average between 208hz and 225hz, and that was with intonation (no chanting). My speaking voice after about a year of voice training was only an average of 160hz, but that wasn't with me trying to use a trained voice. That was just the residual effects of working with voice trainers and practicing at home some of the time.
When my new set of teachers in my last semester tried to get me to practice at 195hz, I was regularly accidentally ending up at around 208hz. I was actually more comfortable there than at 195hz. I had some recordings that were as high as an average of 230hz with good quality, although I couldn't maintain that for long periods of time.
One other thing we noticed about my voice was that when they tried to get me to go lower in pitch than 135hz, I couldn't go much lower. It's like I have an ingrained habit of speaking near the lowest part of my range. My mom and sister both speak pretty low too, so I think that might be a habit we all share, or maybe a physical quality to our voices.