The easiest way to open the Web Page Performance from the application view page.
Right click on your desired URL / URI and select 'Show measures in the chart' and then 'Toggle the measure' as table and add the 'count' aggregation from the header with the right click and change the timeframe as per your requirements.
If you are not able to find you desired URL / URI then create a custom measure from the System Profile.
Metrics data (count, sum, min, max) stores in the Performance Warehouse and you can see the historical data according to configured period settings for (High, Medium, Low resolutions).
The below screenshot is the reference to said settings.
Count means that how many times the specific URL was accessed to given timeframe e.g last 24 hours, last 7 days etc...