for me its both going up and down. for last 3 days my channel is all screwed up like lot others. and my CTR and earnings dropped. but before 3 days or so, for few days my earning went up like 3-4 times for few days. impression didn;t change but CTR went up and PPC increased by 300% - 400%. i was happy with more money but now for last 3 days, it went down to hell. don;t have a clue