Had a test 6 months ago out of curiosity, results came back at under 150. Doctor told me it had to have been a dud and had another test which resulted in around 300.
Results are still significantly below average but the Doctor advised I don't purse TRT or anything as I don't have any adverse symptoms.
I eat healthy, work out fairly regularly and get a fair bit of sun. I often wonder how different my muscle density / focus / sex drive would be at average T levels.