oil change on my 360

Hi guys. Just wondering I placed a strong magnet in my oil filter to see how much debris it will collect. I didn't want to cut the filter apart so I just placed it just inside the filter at the top.
I have a few pics to show how much it collected. I am asking out there is the amount of metal collected at 5000 Kms normal? There are a few large slithers in there that I am querying. The magnified pics is the material wiped onto my finger.
Regards
Billy D...
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