How to poll a list of all leads on a given day.

Hello,

New to the FollowUpBoss API. I ran a request to get people using the following parameters.

createdAfter=2021-09-20T00:00:00Z&createdBefore=2021-09-25T00:00:00Z&limit=10&includeUnclaimed=true

However, the number of leads I'm getting returned does not match the number of leads shown in the FollowUpBoss application for each day.

What is the reason for this? I read somewhere in the docs that the API key may not have access to certain leads. Could this be the reason. And if so, is there a good way to just a total count for reporting via the API.