CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 21231 than in any other category.
The following table shows how many health care and social assistance businesses with between one and four employees were in 21231 during the period from 2012 to 2016.
Health care and social assistance businesses with between one and four employees in 21231 (2012-2016)
Year
Total businesses
2012
13
2013
16
2014
15
2015
13
2016
15