According to this, roughly 50 percent of the private economic output in the US comes from firms of 10 or fewer, which is about 25 percent of the whole.
Small firms employed about 51 percent of the private sector economy in 1998,
a slight decline from 55 percent in 1990. This share changed less than 1 percent
in any one year over the 1990–1998 period.
a slight decline from 55 percent in 1990. This share changed less than 1 percent
in any one year over the 1990–1998 period.


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