To determine how many total outcomes were possible for the event of drawing a green token, we need to look at the number of green tokens available. According to the problem, there are 8 green tokens in the bag.
Since the question specifies that the first draw is a green token, the total outcomes for that event—drawing one green token from the pool of 8 green tokens—would be equal to the number of green tokens available, which is 8.
Therefore, the answer is 8.