Player stats tracker store data

[MrAwesomePhantom2]

Im trying to make a basic player stats tracker that will track player death and playtime but im currently stuck on how to store the death counter and play time for each player and latter on being able to have a command to see who has the most play time. Im new to java and forge and this is my first time trying to make a forge mod so any help would be greatly appreciated.

 

Thanks 

[MrAwesomePhantom2]

In got it to work thanks diesieben07 for pointing me in the right direction.