Hi, Oluwatobi. It seems that BUT is quite a small university, with an enrollment range of 1000-1999 students across all degree paths. With that in mind, it may be hard to find an exact number online. I would suggest contacting their administration team at [email protected]
I'm sure they'd be more than happy to help once you explain your situation.
Good morning. I recommend that you write an official letter to Bells University's Director of Academic Planning, explaining that the data requested is purely for research reasons.