Where is the data about Travel Nurse rentals?

[Joseph Cacciapaglia]

I've had a ton of clients in the past few months decide they want to focus on mid term rentals for travel nurses. The first time I heard it, it sounded like an interesting niche, but now so many people are heading that way that I question how much demand there is from nurses. Does anyone know where I can find stats about the number of travel nurses visiting my market (San Antonio)? I found stats on how many nurses are here in town, but can't find anything regarding how many of them are traveling. 

What I'm more curious about, is if nurses actually have significantly different needs than other business travelers. It seems like such a small TAM, and I'm not sure it makes sense to niche down so far. We definitely have demand for mid term rentals in general, but is there a benefit for specifically targeting nurses? I'm also curious about fluctuations in travel nursing needs over time. Has this just been a booming business due to the pandemic, or 

Is this data available somewhere?