* Fall enrollment: This is the largest single point in time measurement and is often used as a proxy for the "annual" student body.
* Spring enrollment: This is also a large group and might have slightly different numbers.
* Summer enrollment: Summer sessions typically have a smaller student body.
* Students who may transfer in or out during the year: The student population fluctuates throughout the year.
To find the most accurate approximation of annual student numbers, you should check the official Sam Houston State University website. Look for their Institutional Research or Office of Planning and Analysis pages. They will likely publish annual enrollment reports with details broken down by semester.