We will graduate when we meet allmostly at the discretion of 'the powers that be' but we can use the required milestonesstatistics site to determine how 'Healthy' a site is, the healthier a site the more likely it is to be graduated. Currently we meet every milestone but question count.
Provided we keep a constructive and active community with a healthy question and answer base then it should only be a matter of time before we make the needed impression.
Much thanks to Rarity for correcting my understanding.
5 questions per day Needs Work – 15 questions per day on average is a healthy beta, 5 questions or fewer per day needs some work. A healthy site generates lots of good content to make sure users keep coming back.