Create a CB Query Field that queries for your count then use a substitution IF statement in a Custom HTML field to condition against the query fields value. Example as follows.
[cb:if FIELD_NAME="1"]Icon 1[/cb:if]
[cb:if FIELD_NAME="2"]Icon 2[/cb:if]
[cb:if FIELD_NAME="3"]Icon 3[/cb:if]
[cb:if FIELD_NAME>"3"]Icon 4[/cb:if]
You can also use this in the query fields Parameters > Layout > Profile Value Layout to avoid needing a Custom HTML field to handle the profile display. See the below for further substitution usage information.
www.joomlapolis.com/support/tutorials/107-use-cases/18353-using-substitutions-throughout-cb