For the Conversion Stats attribution values in the Ads API (ie, post_click_1d, post_click_7d, post_click_28d, post_imp_1d, post_imp_7d, post_imp_28d), are the values cumulative or are they capturing specific conversions relative to the time interval?
If cumulative, do they reset per day?
Is there any difference between account, campaign and ad-level stats calls?