My 2016 MBP, 500GB SSD with a ton of nodejs development (so lots of disk i/o):

    Percentage Used:                    5%
    Data Units Read:                    198,797,763 [101 TB]
    Data Units Written:                 151,801,865 [77.7 TB]
    Host Read Commands:                 4,494,028,451
    Host Write Commands:                1,965,182,650

A new system should not have done that much work already in that short a time.