In the Navigation menu:
Click Search and then click Applicants.
Click New and then click Add a Criteria Item.
Select Column.
In the Select Applicant Columns window, click the Column Name header to sort.
Scroll down to find the Created On (Range) for Applicants.
Click Select.
Choose your start and end dates.
Click Run Search to get a list of applicants added during that time.
The search results will show the total count of applicants matching your criteria.
Alternatively, you can create a saved tag file with the applicants added during your specified time frame. This tag file can then be used for quick access to this group of applicants in the future.
You could also go to the applicant table view and within the Created On date field, click on the filter option 
and select After the date you want to check from (or between, if you want a specific week/month etc) - this is easier than a search.
If you need more detailed reporting or specific metrics, you might want to explore our reporting features or consult with your system administrator for custom report options.