You could always use an SDK Script to do the counting for you. I made up this test script in case you want to go this route.

    using System;
    using System.ComponentModel;
    using System.Collections.Generic;
    using System.Collections;
    using System.Linq;
    using System.Data;
    using System.Data.SqlClient;
    using System.Text;
    using Laserfiche.RepositoryAccess;

    public class Script1 : RAScriptClass91
    {
        protected override void Execute()
        {
            var tv = (IEnumerable<object>)GetTokenValue("Testtoken");
            int c = tv.Count(x => x.ToString().Trim().ToUpper() == "BOB");
            SetTokenValue("Bobcount",c);
            //this.DesignTools.Watch("bobcount",c);
        }
    }

Here is my test token and then my results.