CBP data indicates that there are more establishments categorized as retail trade businesses with between five and nine employees in Allegheny County zip codes than in any other category.
The following table shows how many mining, quarrying, oil and gas extraction businesses with between five and nine employees were in Allegheny County zip codes during the period from 2012 to 2016.
Mining, quarrying, oil and gas extraction businesses with between five and nine employees in Allegheny County (2012-2016)
Year
Total businesses
2012
11
2013
10
2014
12
2015
9
2016
12
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