Level UP

Hello. If i post in a wrong topic I am
, but i don't speak russian.
I have level 13 so more time ago. I kill more zombie ( 1561 XP) every week. How many zombie need to kill for next level? Please HELP me.
Thanks.

I have level 13 so more time ago. I kill more zombie ( 1561 XP) every week. How many zombie need to kill for next level? Please HELP me.
Thanks.