I want to know if there is a tool or a procedure in place to check the statistics on how many ATC findings have been raised and how many exemption requests have been requested, in a period of time.
If there isn't such a thing available, can someone please let me know of any tool, functionality of which is the closest to the one I have described? It would be really appreciated.
ATC itself does not provide such a time series, it just gives you the raw data. The question is not detailed enough to understand what's really needed here or what kind of user interface you would expect.
ATC can provide statistical records for single ATC runs. You can find them in table SATC_AC_RESULTH on the database on an aggregated level. You can also use a view SATC_AC_RSTIS_DDLV to get a more detailed view.
For exemptions, you can extract all information from SATC_CI_EXEMPT. You can use CDS features to build own views.