What is the average amount of student loan debt that people have after their BA degree?

I know that not everyone takes out a loan for school but I just need an estimate number. I feel overwhelmed and stress out because I'm going to Nursing school and will have 28,000 in debt over my head after I graduate. I'm really really stressed! I do have a job lined up after I graduate but 28,000 seem so big right now.

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