Those stats are added using the amxmodx addon for cstrike, depending on whether or not youre using cs 1.6.
Select base build on whatever OS you have it originally on :
https://www.amxmodx.org/downloads-new.php?branch=master
Then download the cstrike package afterwards. Copy and paste the contents from cstrike into the base package. Afterwards you can go into amxmodx/configs/plugins.ini and modify it to have the stats enabled. There is a plugin with a ; in front of it in relation to stats. Remove it, save and upload that file. Then edit what you want ingame after restarting the server