How long does Gargoyle save the usage data?

[ztugdriver]

Hello just got my router from Gargoyle and so far so good. I'm looking forward to monitoring my usage as my provider only allows me 10GB per month. My question is how many months or years will the router save my data before it overwrites it? I'm not too savvy on how this device works I'm just trying to monitor my data so I don't incur any overages. I tried YAMon but the totals were over 500MB difference at the end of the month and the usage totals could not be accessed unless you had an active internet connection. There were a lot of missing days and hours using it as well. Thank you for your help and patience.

[ispyisail]

From my understanding its 12 months.

Data get over written after that.

[ztugdriver]

Thank you fro the reply. Thats more than enough time for me.