I started brewing at the end of January. I have brewed 4, 5gal batches since that time. So a little over 6gal/month.
However I am planning on making some homebrew for a big birthday party in June. So my current plans are to make 3 more batches before the first week in May.
I drink an average of 1 12oz a day but I am giving quite a bit away so I am still running low before the next batch is ready to drink.