CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Iowa than in any other category.
The following table shows how many air transportation businesses with between one and four employees were in Iowa during the period from 2012 to 2016.
Air transportation businesses with between one and four employees in Iowa (2012-2016)
Year
Total businesses
2012
4,978
2013
4,864
2014
4,873
2015
4,877
2016
4,522
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