All of my ads range from .200 to 1% ctr. I started off getting a shitload of impressions/clicks and slowly the impressions just stopped coming in. I dont get it. For example, today; I have 605 impressions, and 3 clicks. on 3 seperate ads. one of them is at 2%(1/50) one is at 1.389%, and one is at 1.220%. Ive got about 6 more ads that are all sitting at like 60 impressions with no clicks. I just dont understand. someone please help